Two poles of equal heights are standing opposite to each other on either side of a road, which is 100 meters wide .From a point between them on the road, the angles of elevation of their tops are 30? and 60? .Find the position of the point and also, the height of the poles. ( use = 1.73)

Answers

Answer 1
Let the point be 'P' whose distance from the left pole is 'x' m and from the right pole is (100 - x) m. Let the angle of elevation towards the left be 30° and towards the right be 60°. Let the heights of the poles be 'h'. Hence,
[tex] \tan( {30}^{0} ) \: = \: \frac{h}{x} [/tex]
[tex]h \: = \: x \tan( {30}^{0} ) [/tex]
[tex]x \: = \: h \cot( {30}^{0} ) [/tex]
[tex]x \: = \: h \sqrt{3} [/tex]
[tex] \tan( {60}^{0} ) \: = \: \frac{h}{100 - x} [/tex]
[tex]100 - x \: = \: h \cot( {60}^{0} ) [/tex]
[tex]100 - x \: = \: \frac{1}{ \sqrt{3} } h[/tex]
[tex]100 \sqrt{3 } \: - \: \sqrt{3} x \: = \: h[/tex]
Substituting the value of x, we get,
[tex]100 \sqrt{3} \: - \: \sqrt{3} ( \sqrt{3} h) \: = \: h[/tex]
[tex]100 \sqrt{3} \: - \: 3h \: = \: h[/tex]
[tex]4h \: = \: 100 \sqrt{3} [/tex]
[tex]h \: = \: 25 \sqrt{ 3} [/tex]
or,
h ≈ 25(1.73)
h ≈ 43.25 m
[tex]x \: = \: \sqrt{3} h[/tex]
[tex]x \: = \: \sqrt{3} ( 25 \sqrt{3} )[/tex]
[tex]x \: = \: 25(3)[/tex]
x = 75 m.
Therefore,
h = 43.25 m, x = 75 m, and (100 - x) = 25 m.
Answer 2

Answer:

Distance to the pole from the vertex of the 60o angle = 25 mDistance to the second pole from the vertex of the 30o angle = 75 mHeight of the pole = 43.3

Step-by-step explanation:

The point is somewhere on the road. From that point, two poles can be seen at different angles of elevation. One is 30 degrees, and another is 60 degrees.

Call the height of the poles y and the point on the road as x meters away from the base of 60 degree angle to the base pole

Tan(60) = y/xTan(30) = y/(100 - x)  Isolate y for both equations
x*tan(60) = y(100 -x) * tan(30) = y  Since both boles are equal in height, equate the two equations.

(100 - x) * tan(30) = x*tan(60)

Using exact values (from the unit circle) tan(30) = sqrt(3)/3tan(60) = sqrt(3)(100 - x) * sqrt(3)/3 = x*sqrt(3)     Divide both sides by sqrt(3)(100 - x)/3 = x                              Multiply both sides by 3 100 - x = 3x                                  Add x to both sides100 = 4x                                       Divide by 4x = 25

The distance to the other pole = 100 - 25 = 75

y = x * sqrt(3)y = 25 * 1.73y = 43.3

Related Questions

The equation of a circle is ​ (x−11)2+(y−9)2=225 ​ .



What is the center of the circle?

Answers

Answer:

(11,9)

Step-by-step explanation:

If a circle is given by its equation [tex](x-a)^2+(y-b)^2=r^2,[/tex] then coordinates of the center are [tex](a,b)[/tex] and radius is r.

In your case, for the circle with equation [tex](x-11)^2+(y-9)^2=225,[/tex] you can state that coordinates of the center are (11,9) and radius is 15.

Answer:

The center of the circle is (11,9)



The car at each vertex of a Ferris wheel holds a maximum of 5 people. The sum of the measures of the angles of the Ferris wheel is 7740º. What is the maximum number of people that the Ferris wheel can hold?

225
300
250
200

Answers

Answer:

225

Step-by-step explanation:

The sum total of all the angles is 7,740 degrees,

The formula for the interior angle is 180(n - 2) where n is the number of sides in the polygon

Set this equal to 7740

180 (n-2) = 7740

Divide each side by 180

 180/180 (n-2) = 7740/180

  n-2 =43

Add 2 to each side

n-2+2 = 43+2

n = 45

Each vertex hold 5 people so take n and multiply by 5

45*5 = 225

The Ferris wheel holds 225 people

Calculate s26 for the arithmetic sequence in which a14=4.1 and the common difference is d=1.7

Answers

Answer:

The value of [tex]s_{26}=84.5[/tex]

Step-by-step explanation:

We have given  [tex]a_{14}=4.1[/tex]

d=1.7

We have to find [tex]s_{26}[/tex]

So, [tex]a_{14}=a+13d[/tex] from the formula

[tex]a_n=a+(n-1)d[/tex]

When n=14

[tex]a_{14}=a+(14-1)(1.7)=a+13(1.7)[/tex]

[tex]4.1=a+22.1[/tex]

[tex]-18=a[/tex]

[tex]a=-18[/tex]

Using the formula:

[tex]s_n=\frac{n}{2}[2a+(n-1)d[/tex]

When n=26

[tex]s_{26}=\frac{26}{2}[2(-18)+(26-1)(1.7)][/tex]

On simplification we get:

[tex]s_{26}=84.5[/tex]



Carly drove cross-country on vaction. Her average speed was 56 miles per hour. How far did she go in 24 hours?

Answers

Answer:

1344 miles

Step-by-step explanation:

using the relationship between distance/ speed / time

distance = speed × time, then

distance = 56 × 24 = 1344 miles travelled


Final answer:

To determine the distance traveled, we use the formula 'Distance = Speed x Time'. Based on Carly's average speed of 56 miles per hour for 24 hours, she traveled a total of 1,344 miles.

Explanation:

In this problem, we're being asked to calculate how far Carly drove across the country in 24 hours if her average speed was 56 miles per hour. To find the distance she traveled, we can make use of the formula Distance = Speed x Time. So, for this particular situation:

Distance = 56 mph x 24 hours = 1,344 miles

Therefore, Carly drove 1,344 miles in 24 hours with an average speed of 56 miles per hour.

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Help please!!

For the following graph, what type of discontinuity occurs at x = 6 and what step of continuity is broken?

A) infinite and f(6) does not exist.
B) removable and f(6) does not exist.
C) jump and limx→6− f(x) ≠ limx→6+ f(x).
D) infinite and limx→6− f(x) ≠ limx→6+ f(x).

Answers

Answer:

A) Infinite and f(6) does not exist

Step-by-step explanation:

The three types of discontinuities are:

1. Removable or Hole: When the left hand limit is same as right hand limit but they are not equal to the value of function at x = 6.

Graphically if there exist a hole at the point x = 6, removable discontinuity occurs. But, it is not the case in the given graph.

2. Jump: When the left hand limit is not same as right hand limit.

But graphically, we see that both left and right limit at x=6 are tending to infinity i.e. both limits are same.

3. Infinite: It occurs when there exists vertical or horizontal asymptotes between the function and both limits tend to infinity.

Graphically, we see that the function has infinite discontinuity as there exist vertical asymptote and the value of function does not exist at x = 6.

You buy clothing at a sale.You buy sneakers at 2/3 of their original price of $60, a sweater at 7/10 of it original price of $35, and a jacket at 5/6 of its original price of $45.

a. How much money did you spend?

b. How much money did you save?

c. What fraction of the total original price did you save?

Answers

Answer:

a. $102  b. $38  c. 19/70.

Step-by-step explanation:

a. You spent  2/3 * 60 + 7/10 * 35 + 5/6 * 45

= $102.

b. Cost before the sale discount = 60 + 35 + 45 = $140 , so the amount you saved = 140 - 102 = $38.

c.  Fraction on original price saved = 38/140 = 19/70.

Money spent is $102. Money saved is $38. The fraction of the total original price saved is 19/70.

a. How much money did you spend?

Sneakers: 2/3 of $60 = $40

Sweater: 7/10 of $35 = $24.50

Jacket: 5/6 of $45 = $37.50

Total spent = $40 + $24.50 + $37.50 = $102

b. How much money did you save?

Original total price = $60 + $35 + $45 = $140

Amount saved = $140 - $102 = $38

c. What fraction of the total original price did you save?

Fraction saved = Amount saved / Total original price = $38 / $140 = 19/70

Sonya wants to sew ribbon along each side of a square pillow. If the pillow has an area of 144 square inches, how much ribbon would she buy to have the exact amount she needs

Answers

area of a square equals the length of one side squared:

[tex]a = {length}^{2} [/tex]

to find the length of one side:
[tex]length = \sqrt{area} [/tex]

Plugging in:
[tex]length = \sqrt{144 } = 12[/tex]

Since there are 4 sides to a square we multiply the length of one side (12 inches) by 4 to see all the way around.

[tex]12 \times 4 = 48[/tex]

Sonya would need 48 inches

In a right triangle ?ABC, the length of leg AC = 5 ft and the hypotenuse AB = 13 ft. Find: The median to side BC The length of the angle bisector of angle ?A.

Answers

The length of the angle is 12

Answer:

Median is sqrt61

Step-by-step explanation:

Which radical expression represents the perimeter of a triangle if the side lengths of the triangle are given by the expressions 13√80 , 3√125, and √500 ? A) 16 √5 B) 26√5 C) 39√5 D) 77√5

Answers

Answer:

D

Step-by-step explanation:

so basically to add up radicals you need to make the number inside the square root the same. what you have to do to do that is find squares inside the number as a factor.

13√80=13*2√20=13*2*2√5=52√5

3√125=3*5√5=15√5

√500=10√5

so all of them have 5 in the square root so you can add them up to equal 77√5


Final answer:

To find the perimeter of a triangle with given radical expressions for side lengths, simplify each expression and add them up. The correct answer is D) 77√5.

Explanation:

The perimeter of a triangle is the sum of the lengths of all three sides. So, to find the perimeter of the triangle given the side lengths as radical expressions, we need to simplify and add them up.

The given side lengths are: 13√80 , 3√125, and √500.

Simplify each radical expression:

13√80 = 13 * √(16 * 5) = 13 * (4 * √5) = 52√5

3√125 = 3 * √(25 * 5) = 3 * (5 * √5) = 15√5

√500 = √(100 * 5) = 10√5

Now, add up the simplified radical expressions: 52√5 + 15√5 + 10√5 = (52 + 15 + 10)√5 = 77√5.

Therefore, the correct answer is D) 77√5, which represents the perimeter of the triangle.

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Jared has a bag that contains 8 blue marbles, 6 red marbles, and 10 green marbles. He selects a marble, replaces it in the bag, and then selects another marble. What is the probability that both marbles are green?

Answers

Answer:

The probability is 17.36%

Step-by-step explanation:

In order to find this, we first need to find the probability of pulling one green marble. You can do this by dividing the number of marbles by the amount of marbles in the bag.

10/24 = 41.67%

Now in order to find the likelihood of doing this twice, you multiply that number by itself.

41.67% *41.67% = 17.36%

Stefan sells jin a bicycle for $114 and a helmet for $18. The toltal cost for jin is 120% of what stefan spent originally to buy the bike and helmet. How much did stefan spend originally? How much money did he make by selling the bicycle and helmet to jin?

Answers

Answer:

Stefan spend originally $110 and the money stefan make by selling the bicycle and helmet to jin is $22 .

Step-by-step explanation:

As given

Stefan sells jin a bicycle for $114 and a helmet for $18.

Total cost of the bicycle and helmet = $114 + $18

                                                            = $132

The total cost for jin is 120% of what stefan spent originally to buy the bike and helmet.

120% is written in the decimal form.

[tex]= \frac{120}{100}[/tex]

= 1.20

Let us assume that the Stefan spend originally for bike and helmets be x.

Than the equation becomes

1.20 × x = 132

1.20x = 132

[tex]x = \frac{132}{1.20}[/tex]

x = $110

Therefore stefan spend originally be  $110 .

Now find out how much money did he make by selling the bicycle and helmet to jin .

Money make by Stefan = Total selling cost of helmet and bicycle  - Total amount of  stefan spends for purchasing.

Money make by Stefan = 132  - 110

Money make by Stefan = $22

Therefore the money stefan make by selling the bicycle and helmet to jin is $22 .



                                     

             

Final answer:

Stefan's original expenditure for the bicycle and helmet was $110. He made a profit of $22 by selling these items to Jin.

Explanation:

Stefan sold the bicycle and helmet to Jin for a total of $132 ($114 + $18). We know that this amount represents 120% of what Stefan originally spent. To determine Stefan's original expenditure, we'll therefore divide the total amount he earned by 120 and then multiply by 100 (as the cost is 100% for him). So, Stefan's original expenditure would be (132/120)*100 = $110.

Now, to determine Stefan's profit, we subtract his original expenditure from the amount for which he sold the items to Jin. That is, $132 - $110 = $22. So, Stefan made a $22 profit from selling the bicycle and helmet.

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A tiger can eat food that weighs up to 15% of its body weight.If a tiger can eat 75 pounds of food, how much does a tiger weigh?

Answers

Answer:

500 pounds

Step-by-step explanation:

By proportion :-

15% of the tigers weight   = 75 pounds

1%    ....................................   = 75/15 pounds

100% ..................................   = 75*100 / 15 pounds

= 7500 / 15

= 500 pounds


Matt has a full jar of marbles he gave Kayla 3/4 and Marbles and Kayla return 1/3 of the jars worth of Marvel's to the jar how much are the jars now full marbles

Answers

Answer:

Matt has 7/12 of the jar of marbles left.

Step-by-step explanation:

In order to find this, simply subtract the 3/4 from the full jar (1) and then add 1/3. They will need common denominators to complete this operation.

1 - 3/4 + 1/3 = Amount

12/12 - 9/12 + 4/12 = Amount

7/12 = Amount

A convex polyhedron has 6 vertices and 12 faces. How many edges does it have?
Please help me and I will give you the Brainliest answer

Answers

Answer:

16 edges.

Step-by-step explanation:

We will use Euler's polyhedron formula to solve for the edges of our convex polyhedron.

Euler's polyhedron formula is: [tex]V+F-E=2[/tex], where,

V= Vertices of polyhedron,

F= Faces of polyhedron,

E= Edges of polyhedron.

Let us substitute V=6 and F=12 in Euler's formula to find number of edges of our polyhedron.

[tex]6+12-E=2[/tex]

[tex]18-E=2[/tex]

Let us subtract 18 from both sides of our equation.

[tex]18-E-18=2-18[/tex]

[tex]-E=2-18[/tex]

[tex]-E=-16[/tex]

[tex]E=16[/tex]

Therefore, our convex polyhedron will have 16 edges.

Jimmy spent 22% of all his money on a video game how much did the video game cost if he had $200 in the start

Answers

Multiply the amount of money he had by the percent of the game:

200 x 0.22 = 44

The game cost $44

List the 6 congruency statements given ABC = DEF

Answers

Answer:

∠A ≅ ∠D, ∠B ≅ ∠E, ∠c ≅ ∠F, AB = DE, BC = EF, AC = DF

Step-by-step explanation:

Given that triangles ABC and DEF are congruent. Now we need to choose correct congruency statements from the given choices.

We know that corresponding angles of congruent triangles are equal so we can write:

∠A ≅ ∠D

∠B ≅ ∠E

∠c ≅ ∠F

We know that corresponding sides of congruent triangles are equal so we can write:

AB = DE

BC = EF

AC = DF

comparing these with given choices we see that, First choice is correct.


Given sin(−θ)=−1/4 and tanθ=√15/15 . What is the value of cosθ ?

Answers

Answer:

[tex]\cos\left(\theta\right)=\frac{\sqrt{15}}{4}[/tex]

Step-by-step explanation:

Given that [tex]\sin\left(-\theta\right)=-\frac{1}{4}[/tex] and [tex]\tan\left(\theta\right)=\frac{\sqrt{15}}{15}[/tex]

Using those values we need to find value of [tex]\cos\left(\theta\right)[/tex]

So let's begin with equation of  [tex]\tan\left(\theta\right)=\frac{\sqrt{15}}{15}[/tex] and simplify it to get value of  [tex]\cos\left(\theta\right)[/tex]

[tex]\tan\left(\theta\right)=\frac{\sqrt{15}}{15}[/tex]


[tex]\frac{\sin\left(\theta\right)}{\cos\left(\theta\right)}=\frac{\sqrt{15}}{15}[/tex]

[tex]\sin\left(\theta\right)=\frac{\sqrt{15}}{15}\cos\left(\theta\right)[/tex]

[tex]\sin\left(\theta\right)\cdot\frac{15}{\sqrt{15}}=\cos\left(\theta\right)[/tex]

[tex]\cos\left(\theta\right)=\sin\left(\theta\right)\cdot\frac{15}{\sqrt{15}}[/tex]

[tex]\cos\left(\theta\right)=-\sin\left(-\theta\right)\cdot\frac{15}{\sqrt{15}}[/tex]  {since [tex]\sin\left(-\theta\right)=-\sin\left(\theta\right)[/tex] }

[tex]\cos\left(\theta\right)=-\sin\left(-\theta\right)\cdot\sqrt{15}[/tex]

[tex]\cos\left(\theta\right)=-\left(-\frac{1}{4}\right)\cdot\sqrt{15}[/tex]

[tex]\cos\left(\theta\right)=\frac{\sqrt{15}}{4}[/tex]

Answer:

[tex]\cos \theta = \frac{\sqrt{15}}{4}[/tex]

Step-by-step explanation:

The sine function is an odd function, that is:

[tex]\sin (-\theta) = - \sin \theta[/tex]

Then,

[tex]\sin \theta = \frac{1}{4}[/tex]

The cosine function is computed by the following relation:

[tex]\cos \theta = \frac{\sin \theta}{\tan \theta}[/tex]

[tex]\cos \theta = \frac{\frac{1}{4} }{\frac{\sqrt{15}}{15} }[/tex]

[tex]\cos \theta = \frac{\frac{1}{4} }{\frac{1}{\sqrt{15}} }[/tex]

[tex]\cos \theta = \frac{\sqrt{15}}{4}[/tex]

How are vectors used in real life?

Answers

Answer:

Vectors can be used in sports to define how a baseball player moves to catch a high fly baseball they can also be used with aircrafts.


Remember that science uses vectors to describe anything that has both a direction and a magnitude (size or quantity). These are drawn as pointed arrows, which length represents the magnitude. They are very used to locate persons or objects as the final direction can be predicted using a reference point, an stimated speed and direction. Vectors are also usefull to predict what would happen if two objects come into contact, an example would be predicting the movement of billiard balls, or calculating the trajectory of a golf ball.  

The order of several matrices are given. A = 3x2 B = 3x5 C = 2x3 D = 5x7 E = 3x5 Which can be multiplied?

Answers

Answer:

A/C and B/D and C/E

Step-by-step explanation:

given the order of 2 matrices

(m × n)(p × q)

For the matrices to be conformable for multiplication

The number of columns in the first must equal the number of rows in the second

That is n = p and the resulting product has order m × q

From the order of matrices given

A and C, B and D, C and E can be multiplied

Final answer:

The matrices that can be multiplied are A*C, C*A, B*D, and E*D, as the number of columns in the first matrix equals the number of rows in the second.

Explanation:

In matrix multiplication, the number of columns in the first matrix must be equal to the number of rows in the second matrix. Therefore, given the order of the matrices A = 3x2, B = 3x5, C = 2x3, D = 5x7, and E = 3x5, the possible matrix multiplications are: A*C, C*A, B*D, and E*D. For instance, you can multiply A (which is 3x2) with C (which is 2x3) because the number of columns in matrix A is equal to the number of rows in matrix C.

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help? anyone please thank youuuuuuuuu

Answers

Is it asking about the slope of this vertical line? if so, then the answer is "undefined". The rise is any number you want, let's say 1, and the run is 0

slope = rise/run = 1/0 = undefined

you cannot divide by zero

The original selling price of a single share of stock was d dollars. The selling price for a share of the same stock on a later date was represented by the expression 0.8(1.25d). Which description could explain what happened to the price of the share of stocks? A. The price increased by 25% and then decreased by 20%. B. None C. The price increased by 1.35% and then decreased by 15%. D. The price increased by 135% and then decreased by 85%. E. The price increased by 35% and then decreased by 0.15%.

Answers

Answer:

A

Step-by-step explanation:

The expression 1.25 d means 100% of the price +25% of the price. This means it increased by 25%. Multiplying it by 0.8 means it's value is only 80% of the value now which means it must of had a 20% decrease after increasing. It's now at it's original price.

PLEASE HELP ASAP WILL MARK BRAINLYIST

SEE PICTURES

Answers

Answer:

Problem One: D

Problem Two: B

Step-by-step explanation:

Problem One

A and B are both wrong for the same reason. The graph for both of them will increase. Any time you raise a base greater than 1 to a power, the graph goes up. See below. The red graph is y = 12*1.1^2

The question is giving you a big hint by showing you which point to look at. When x = 1, y = 8. What will do that?

Is it 12 * 1/2 or is it 12 * 2/3

I think you will find it is 12*2/3 So the answer is D

Part B

This one is just the opposite, only now you have to figure out which graph you are getting. A is the only one that is obviously wrong. When x = 1, A will give

40* 1.5 which is 60 which is not enough.

C is too large. 40 * 3.25 = 130 so that does not describe the graph when x = 1.

So B and D are your only choices. D is still a little too big. See if you can get D to be 100 when D = 1

That leaves you with b

y = 40 * 2.25 = 90 which is just what you want.

what is 14.5% of 8600 meters?

Answers

Answer:  1.247 kilometers


Step-by-step explanation:  multiply 8600 by 0.145 so 8600 times 0.145=1247


help picture down here

Answers

Answer:

it would be 8 hours


Answer:

I got 7.2 hours

Step-by-step explanation:

make a proportion such as 5/12=3/x and cross multiply then solve the rest

Write the equation of a line that passes through the point (-1,5) and has a slope of -7. Your answer should be given in the form y = mx + b.

Answers

Plug the values in the equation and find b
(x, y) and m = slope
[tex]5 = ( - 7)( - 1) + b \\ b = - 2 \\ y = - 7x - 2[/tex]
Final answer:

The equation of the line that passes through the point (-1,5) and has a slope of -7 is y = -7x - 2. This can be determined by substituting the given values into the equation y = mx + b and solving for 'b'.

Explanation:

In mathematics, the equation of a line is commonly represented as y = mx + b, where 'm' represents the slope and 'b' is the y-intercept. In this equation, the slope '-7' is the rate at which 'y' changes for a unit change in 'x'. The y-intercept is the 'y' value when 'x' is zero.

It's given that the line passes through the point (-1,5). We can substitute these values into the equation to find 'b':

5 = -7(-1) + b, which simplifies to 5 = 7 + b. Therefore, 'b' equals to -2 after rearranging.

So, the equation of the line that passes through the point (-1,5) and has a slope of -7 is y = -7x - 2.

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Taylor Scuff leased a new sports car and is certain she can keep under the 12,000 miles allowed a year. The $2,200 due at signing includes the title and license fee. Her monthly lease payments are $700 a month. If the total lease cost is $27,400, for how many months does the lease last?

Answers

Answer:

The number of months  does the lease last are 36 months.

Step-by-step explanation:

Let us assume that the number of months be x.

As given

Taylor Scuff leased a new sports car and is certain she can keep under the 12,000 miles allowed a year.

The $2,200 due at signing includes the title and license fee.

Her monthly lease payments are $700 a month.

If the total lease cost is $27,400.

Than the equations becomes

2200 + 700x = 27400

700x = 27400 - 2200

700x = 25200

[tex]x = \frac{25200}{700}[/tex]

x = 36

Therefore the number of months  does the lease last are 36 months.


Monica has a bag of marbles. There are 4 red marbles and 7 blue marbles and 5 yellow marbles in a bag. Monica will randomly pick two marbles out of the bag replacing the first marble before picking the second marble. What is the probability of Monica picking a red and then blue marble?

Answers

Answer:

[tex]\frac{7}{64}\approx 0.11[/tex]

Step-by-step explanation:

We have been given that there are 4 red marbles and 7 blue marbles and 5 yellow marbles in a bag. Monica will randomly pick two marbles out of the bag replacing the first marble before picking the second marble.

Since Monica will replace the first marble before picking the second marble, therefore, probability of both events will be independent and probability of occurring one event will not affect the probability of second event's occurring.          

Since the probability of two independent compound events is always the product of probabilities of both events.

[tex]P(\text{A and B})=P(A)*P(B)[/tex]

Now let us find probability of picking a red marble out of 16 (4+7+5) marbles.

[tex]P(Red)=\frac{\text{Total red marbles}}{\text{Total marbles}}[/tex]

[tex]P(Red)=\frac{4}{16}[/tex]

Probability of picking blue ball out of 16 (4+7+5) marbles:

[tex]P(Blue)=\frac{\text{Total blue marbles}}{\text{Total marbles}}[/tex]

[tex]P(Blue)=\frac{7}{16}[/tex]

Now let us find probability of Monica picking a red and then a blue marble.

[tex]P(\text{Red and Blue})=\frac{4}{16}\times \frac{7}{16}[/tex]

[tex]P(\text{Red and Blue})=\frac{1}{4}\times \frac{7}{16}[/tex]

[tex]P(\text{Red and Blue})=\frac{7}{4*16}[/tex]

[tex]P(\text{Red and Blue})=\frac{7}{64}[/tex]

[tex]P(\text{Red and Blue})=0.109375\approx 0.11[/tex]

Therefore, the probability of picking a red and then blue marble is [tex]\frac{7}{64}\approx 0.11[/tex].  

Write a linear equation in slope intercept form to model the situation and internet company charges $4.95 per month plus $2.50 for each hour of use how much would it cost in a month when you use the internet for 14 hours

Answers

Answer:

it cost $39.95 in a month when you use the internet for 14 hours

Step-by-step explanation:

internet company charges $4.95 per month plus $2.50 for each hour

Let x be the amount of hours internet used

for 1 hour, charge is 2.50

for x hours , charge is 2.50x

To get linear equation we use y=mx+b

m is the slope and b is the fixed cost

fixed cost b= 4.95 and slope m = 2.50

So equation becomes y = 2.50x + 4.95

we need to find the cost y for 14 hours

So we plug in 14 for x  and find out y

y = 2.50(14) + 4.95= 39.95


Final answer:

The linear equation to model the monthly cost of internet use is y = 4.95 + 2.50x. For using the internet for 14 hours, the total cost would be $39.95.

Explanation:

The student is asking for a linear equation in slope-intercept form to model the monthly cost of internet usage based on the number of hours used. The internet company charges a monthly subscription fee plus an additional fee per hour of use. The equation to represent this situation is y = 4.95 + 2.50x, where y represents the total monthly cost in dollars and x represents the number of hours the internet is used. To calculate the cost for 14 hours of use in a month, we substitute x with 14: y = 4.95 + 2.50(14), which equals $39.95 for the month.

Leah loves chicken wings and is comparing the deals at three different restaurants. Buffalo Bills has 88 wings for \$7$7. Buffalo Mild Wings has 1212 wings for \$10$10. Wingers has 2020 wings for \$17$17. Which restaurant offers the lowest price per wing?

Answers

Answer:

Buffalo mild wings offers the lowest price per wing ($0.83).

Step-by-step explanation:  

Let us find unit price per buffalo wing of each restaurant.

[tex]\text{Unit rate for buffalo bills}=\frac{\$7}{8\text{ wings}}[/tex]

[tex]\text{Unit rate for buffalo bills}=\frac{\$0.875}{\text{ wing}}[/tex]

Upon rounding our answer to nearest cent we will get,

[tex]\text{Unit rate for buffalo bills}=\frac{\$0.88}{\text{ wing}}[/tex]

Therefore, buffalo bills offers each wing for $0.88.

[tex]\text{Unit rate for buffalo mild wings}=\frac{\$10}{12\text{ wings}}[/tex]

[tex]\text{Unit rate for buffalo mild wings}=\frac{\$0.83333}{\text{ wing}}[/tex]

Upon rounding our answer to nearest cent we will get,  

[tex]\text{Unit rate for buffalo mild wings}=\frac{\$0.83}{\text{ wing}}[/tex]

Therefore, buffalo mild wings offers each wing for $0.83.

[tex]\text{Unit rate for wingers}=\frac{\$17}{20\text{ wings}}[/tex]

[tex]\text{Unit rate for wingers}=\frac{\$0.85}{\text{ wing}}[/tex]

Therefore, wingers offers each wing for $0.85.

We can see that buffalo mild wings offers the lowest price per wing that is $0.83 per wing.

A clothing store has a going-out-of business sale. They are selling pants for $8.99 and shirts for $3.99. You can spend as much as $60 and want to buy at least two pairs of pants.

Answers

Final answer:

The question deals with budgeting $60 to buy as many pants and shirts as possible, with at least two pairs of pants to be bought. After purchasing two pairs of pants, the remaining budget can be divided by the price of the remaining item to get the possible quantity.

Explanation:

The subject of this question is

Mathematics

, specifically budgeting and maximizing purchases under a fixed budget. You have $60 to spend and each pair of pants costs $8.99, while shirts cost $3.99. If you want to buy at least two pairs of pants, your initial expense will be $8.99 x 2 = $17.98. After buying two pairs of pants, you will have $60 - $17.98 = $42.02 left to spend on either more pants or shirts. Divide this remaining amount by the price of the item you want to buy more of (either pants or shirts) to see how many more items you can purchase. Remember to round the result down to the nearest whole number, since you can't buy a fraction of an item.

Learn more about Budgeting here:

https://brainly.com/question/31952035

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