The bases of a 39-foot pole and a 15-foot pole are 45 feet apart, and both poles are perpendicular to the ground. The ground is flat between the two poles. What is the length of the shortest rope that can be used to connect the tops of the two poles?

Answers

Answer 1

Answer: 51 feet

Step-by-step explanation:

Hi, since the situation forms a right triangle (see attachment) we have to apply the Pythagorean Theorem:  

x^2 = a^2 + b^2  

Where x is the hypotenuse of the triangle (in this case length of the rope) and a and b are the other sides.  

The difference between the poles' heights is equal to one side of the triangle (39-15=24), the other side of the triangle is the distance between poles (45).  

Replacing with the values given:  

x^2 = 24^2 + 45^2  

x^2 = 576+2,025

x^2 = 2,601

x = √2,601

x = 51 feet

Feel free to ask for more if needed or if you did not understand something.  

The Bases Of A 39-foot Pole And A 15-foot Pole Are 45 Feet Apart, And Both Poles Are Perpendicular To

Related Questions

Sara cuts a pie into halves.How many pieces are there?

Answers

Answer:

2 Pieces

Mostly depends how much slices are there

Step-by-step explanation:

Every element is called half the whole by all equal sections. Similarly, the half fraction is defined as the whole half component of both of the two equivalent sections of the rectangle.

Hope this helps

It would definitely be 2

because she’s dividing it into halves and that would almost always result in two slices

» Aiden has 27 fewer
crayons this week than
last week. Last week he
had 56 crayons. How
many crayons does
Aiden have this week?
Show your work.

Answers

Aiden has 29 crayons this week

Answer:

He has 29 crayons left

Step-by-step explanation:

56-27=29

All you have to do is subtract since fewer means less and to find less you need to subtract

Find the percent of change. Round to the nearest tenth of a percent if necessary. 10 inches to 25 inches. ___ % increase.​

Answers

Answer:

150%  change

Step-by-step explanation:

Formula for Percent change =  C =[ (new - old)/ old ]* 100%

C =  [ (25 in. - 10 in.) / 10 in. ] = [15/10 ] * 100% = 150 %

A golfer hits a golf ball with an initial velocity of 100 miles per hour. The range R of the ball as a function of the angle θ to the horizontal is given by R(θ)=672sin(2θ), where R is measured in feet. Round to two decimal places. Write DNE if the solution does not exist.

​A) At what angle θ should the ball be hit if the golfer wants the ball to travel 450 feet (150 yards)?

degrees

B) At what angle θ should the ball be hit if the golfer wants the ball to travel 540 feet (180 yards)?
degrees

" role="presentation" style="position: relative;">C) At what angle θ should the ball be hit if the golfer wants the ball to travel at least 480 feet (160 yards)?

degrees

D) At what angle ​ θ should the ball be hit if the golfer wants the ball to travel 720 feet (240 yards)?

Answers

Answer:

  A) 21.02°

  B) 26.74°

  C) 22.79°

  D) DNE

Step-by-step explanation:

We can solve the equation for the angle:

  D = 672·sin(2θ)

  D/672 = sin(2θ)

  arcsin(D/672) = 2θ

  θ = arcsin(D/672)/2

A) For D = 450, θ = arcsin(450/672)/2 = 21.0198° ≈ 21.02°

B) For D = 540, θ = arcsin(540/672)/2 = 26.7363° ≈ 26.74°

C) For D = 480, θ = arcsin(480/672)/2 = 22.7923° ≈ 22.79°

D) For D = 720, θ = arcsin(720/672)/2 = DNE

Given the equation below, what is the value of 3 + 6(79 – s)?
7= -s+ 82

Answers

Answer:

1 expression) 477 - 6s

2 equation) s = 75

Step-by-step explanation:

Also, the first expression is simplified

You and some friends went to a haunted house on Halloween. The mummy scared one friend so much that she jumped into the air! The equation h= 4t(2)+ 2t models her jump where h is her jumps height in feet t seconds after the mummy scares her. Where did she reach her maximum.

Answers

Answer:

She reaches her maximum height after 0.25 seconds

Step-by-step explanation:

The question is not properly structured and the equation is also incorrect. Here is the correct question.

You and some friends went to a haunted house on Halloween. The mummy scared one friend so much that she jumped into the air! The equation h= -4t²+ 2t models her jump where h is her jumps height in feet t seconds after the mummy scares her. When did she reach her maximum.

Give the equation h= -4t²+ 2t that models my friend jump where h is her jumps height in feet t seconds, At maximum height, her velocity will be zero i.e

Vmax = 0m/s

Velocity is the rate of change in distance of a body i.e V = dh/dt

Given  h= -4t²+ 2t

V = dh/dt = -8t+2

Since v = 0m/s

0 = -8t+2

-8t = -2

t = -2/-8

t = 0.25 secs

She reaches her maximum height after 0.25 seconds

work out the perimeter of a semicircle with radius 3cm.Give answer in terms of pi.

Answers

Answer:

15.42477796

Step-by-step explanation:

1/2π x 6 + 6

- sorry if its wrong

Answer:

3pi

Step-by-step explanation:

refer to the picture for steps.

A person places $82100 in an investment account earning an annual rate of 4.3%, compounded continuously. Using the formula V = Pe^{rt}V=Pe rt , where V is the value of the account in t years, P is the principal initially invested, e is the base of a natural logarithm, and r is the rate of interest, determine the amount of money, to the nearest cent, in the account after 2 years.

Answers

Final answer:

The future value of $82,100 invested at a 4.3% annual interest rate compounded continuously for 2 years using the formula V = Pe^{rt}, will be approximately $90,137.30.

Explanation:

Your question involves the calculation of the future value of an investment using the formula for continuous compound interest, in this case $82,100 invested at an annual rate of 4.3%, over 2 years. This scenario relies on the mathematical concept of compound interest, which means the interest earned on the initial investment is added to the principal, and this combined amount earns interest as well.

Using the formula V = Pe^{rt}. where:
P = principal amount (initial investment) = $82,100,
r = annual nominal interest rate (decimal) = 4.3/100 = .043,
t = time the money is invested for = 2 years,
e = Euler's number (approx. 2.71828).

The calculation then becomes: V = $82,100 * e^(0.043 * 2) = $82,100 * e^(0.086). Using a calculator to do the exponentiation and the multiplication, the balance in the account after 2 years would approximately be $90,137.30.


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HELP PLEASE VERY QUICK, I'LL MARK AS BRAINLIEST!

Answers

Answer:

Greater ; Greater

Smaller ; Greater

Step-by-step explanation:

Slopes

First row

A: 15/2

B: (25-12.5)/(4-2) = 12.5/2

A has a greater slope than B

-4x + 2y = 8

2y = 4x + 8

y = 2x + 4

A: 2

B: 3/2

A has a greater slope than B

Second Row

A: (2.6-2)/(3-0) = 0.6/3 = 0.1

B: (5-4)/(4-0) = 1/4 = 0.25

A has a smaller slope than B

A: 60

B: (325-50)/5-0) = 275/5 = 55

A has a greater slope than B

What about this one y’all ?

Answers

Answer:

y decreases by half everytime

Step-by-step explanation:

Which of the following can have a NEGATIVE impact on your credit score
1) paying bills on time
2) paying down balances on your credit card accounts
3) applying for multiple credit cards in a short period of time (e.g., a week)

Answers

The answer to this question is 3

The answer option which can have a negative impact on your credit score is: 3) applying for multiple credit cards in a short period of time (e.g., a week).

A credit score refers to a numerical expression between 300 to 850, that typically represents an individual's financial history and credit worthiness.

This ultimately implies that, the higher your credit score, the higher and better it is to obtain a credit (money) from a potential lender.

Generally, the ratings of a credit score by FICO include the following;

A credit score ranging from 670 to 739 is considered to be a good credit score.A credit score of 740 to 799 is better.A credit score of 800 to 850 is considered to be excellent.

Generally, the best ways to improve your credit score are;

1. You should ensure you don't pay less than the minimum amount due.

2. You should ensure you pay your bills on time or as at when due.

3. You shouldn't move credit card debt around.

4. You should pay down balances on your credit card accounts.

However, when you apply for multiple credit cards in a short period of time (e.g., a week), it is most likely to have a negative impact on your credit score.

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Helen is using glass tiles that each measure one square centimeter to make a
decorative square plate. The plate will use 144 square centimeters of glass tiles.
How many glass tiles will Helen use in one row of her plate?

Answers

Answer: 12

Step-by-step explanation:

12 times 12 is 144 so 12.in each row

Final answer:

Helen will use 12 glass tiles in one row of her plate, as the square plate has a total area of 144 square centimeters and each tile measures one square centimeter.

Explanation:

The student's question involves calculating the number of glass tiles Helen would use in one row of a square plate, given that she has 144 square centimeters of glass tiles and each tile measures one square centimeter. To determine the number of tiles in one row, we need to remember that the area of a square is equal to the side length squared. Since the total area is 144 square centimeters, we take the square root of 144 to find the length of one side, which is 12 centimeters. Therefore, Helen will use 12 glass tiles in one row of her plate, as there would be 12 tiles lengthwise and 12 tiles widthwise to make up the total area of 144 square centimeters.


Find the value of r .

Answers

Answer:

0.5

Step-by-step explanation:

hypotenuse/adjacent=r

7/14=0.5



Factor the expression 25x2 – 1.

Answers

Answer:

(5x + 1) • (5x - 1)

Step-by-step explanation:

Step 1:

Equation at the end of step 1:

5^2x^2 - 1

Step 2:

Trying to factor as a Difference of Squares :

Factoring: 25x^2-1

Theory :

A difference of two perfect squares,

A difference of two perfect squares, A^2 - B^2 can be factored into (A+B) • (A-B)

Proof : (A+B) • (A-B)

= A^2 - AB + BA - B^2

= A^2 - AB + AB - B^2

= A^2 - B^2

Note : AB = BA is the commutative property of multiplication.

Note : - AB + AB equals zero and is therefore eliminated from the expression.

Check : 25 is the square of 5

Check : 1 is the square of 1

Check : x^2 is the square of x^1

Factorization is :

(5x + 1) • (5x - 1)

Final result :

(5x + 1) • (5x - 1)

Answer:

Step-by-step explanation:

(5x-1) (5x+1)

Suppose a parabola has vertex (–8, –7) and also passes through the point (–7, –4). Write the equation of the parabola in vertex form.

Answers

We have been given that a parabola has vertex [tex](-8,-7)[/tex] and also passes through the point [tex](-7,-4)[/tex]. We are asked to write the equation of the parabola in vertex form.

We know that vertex form of parabola in format [tex]y=a(x-h)^2+k[/tex], with a vertex at point (h,k).

Let us write equation of parabola using our given information as:

[tex]y=a(x-(-8))^2-7[/tex]

[tex]y=a(x+8)^2-7[/tex]

Now we will substitute the coordinates of point [tex](-7,-4)[/tex] to solve for a as:

[tex]-4=a(-7+8)^2-7[/tex]

[tex]-4=a(1)^2-7[/tex]

[tex]-4+7=a-7+7[/tex]

[tex]3=a[/tex]

Therefore, our required equation would be [tex]y=3(x+8)^2-7[/tex].

Someone please help. Someone please help.

Answers

Radius of the hemisphere and the cone base:  R = 2 in

Height of the cone:   H = 6 - 2 = 4 in

π ≈ 3,14

Ice inside cone:

                           [tex]V_1=\frac13\pi R^2\cdot H=\frac13\pi\cdot2^2\cdot 4=\frac{16}3\pi[/tex]

Ice outside cone:

                            [tex]V_2=\frac12\cdot\frac43\pi R^3=\frac23\pi\cdot2^3=\frac{16}3\pi[/tex]

Total of ice:

[tex]V=V_1+V_2=\frac{16}3\pi+\frac{16}3\pi=\frac{32}3\pi\approx\frac{32}3\cdot3,14=33,49(3)\approx33,5[/tex]

There are 33,5 cubic inches of ice in the cone.

Identify two factors that have a product of 1 7/8.


Will give Brainliest

Answers

Answer:

17×1= 17, and 8×1= 8

17 and 8 is ur answer

i hope its right...

Step-by-step explanation:

1 7/8 into an improper fraction is 15/8

You can say that

3      5

---- x ----

2      4

The ___ of a two-dimensional figure can be any side.

Answers

Answer:

The area I believe.

Step-by-step explanation:

The Length of a two-dimensional figure can be any side.

What is the length?

length is the measure of some distance from one end to another end.

The side is a distance between two vertexes joined with another part of the figure.

We can measure that distance which means it could be a length.

Thus, The Length of a two-dimensional figure can be any side.

Learn more about length;

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If the perimeter of a square is 60 inches, how long is each side?

Answers

Answer:

15

Step-by-step explanation:

Since a square has 4 sides, that means that each side is equal to the other three sides because it is a square. If so, we do 60/4 to get is 15. To check the answer 15x4 is equal to 60.

Answer:

each side will be 15

Step-by-step explanation:

because if its a square and all the sides are the same lengh and one of the sides are 15 then all of the other sides will also be 15,so that will equal 60.

What is the domain of the function y=3x?​

Answers

Answer:

The domain is all real numbers

Step-by-step explanation:

if y = 3x and x can be any number

you can do 3 times -29 or 3 times 1/3


Solve |x| + 7 < 4.

A) {x | x < -11 or x > -3}
B) {x | -3 < x < 3}
C) Ø

Answers

It a


I think I could be wrong

Answer:

C

Source:

Trust me

a sound wave is traveling at 3,810 m/s and has a wave length of 8 m. what is the frequency of the wave?​

Answers

Answer:

476.25 hertz

Step-by-step explanation:

Since the speed of a wave is the wave length multiplied by the frequency, the frequency can be written as the speed divided by the wave length. 3810/8=476.25 hZ. Hope this helps!

As the administration looks ahead to next year, Kyra is concentrating on finishing up this year well. Students at her school receive 4 quarter grades, a mid-term exam grade, and a final exam grade for each class. The quarter grades are all weighted equally, the mid-term exam grade is double the weight of a quarter grade, and the final exam grade is four times the weight of a quarter grade. What fraction of the final course grade is the final exam grade? Express your answer as a common fraction.

Answers

Answer:

2/5

Step-by-step explanation:

Defining x the weight of each quarter grades (4x for the 4 quarter grades), then the weight of the mid-term exam grade is 2x, and the weight of the final exam is 4x. The addition of all grades is 4x + 2x + 4x = 10x (this represents the combination of grades that makes the final course grade).

So, the final exam grade represents 4x/10x = 2/5 of the final course grade.

Answer:

2/5

Step-by-step explanation:

just did the test

$ 20,000 is invested at a rate of 5% compounded quarterly. Identify the compound interest function ta model the situation. Then find the balance after 5 years.

Answers

Answer:

the balance after 5 years is: 26540.744

Step-by-step explanation:

Given the information:

P = initial balance  = $ 20,000r = interest rate (decimal)  = 5% = 0.05n = number of times compounded annually  = 4t = time  = 5

We have the compound interest function ta model the situation is:

[tex]A=P(1+\frac{r}{n} )^{nt}[/tex]

<=> A = [tex]20000(1+\frac{0.05}{4} )^{4*5}[/tex]

<=> A = $26540.744

Hence, the balance after 5 years is: $26540.744

Answer:

$25,640.74

Step-by-step explanation:

The total compound interest is $5,640.74.

The final balance is $25,640.74.

with zero additional deposits

hope this helps:)

Find an integer, x, such that 2, 4, and x represent the lengths of the sides of an obtuse triangle.
A. 2
B. 3
C. 4
D. 6

Answers

Answer:

A

Step-by-step explanation:

What is the mean of the normal distribution shown below?
-3 -2 -1
0
1
2
3
00.00

Answers

Answer:

mean = 0

Step-by-step explanation:

-3 -2 -1

0

1

2

3

if your set is  -3, -2, -1, 0, 1, 2, 3  the your mean = 0

if one letter is chosen at random from the word substitute, what is the probability that the letter chosen will be a "t"?

Please show the work. Thank you

Answers

Answer:

3/10

Step-by-step explanation:

there are 10 letters in substitute

there are 3 t's

3/10

The probability of choosing the letter 't' will be 3 / 10.

What is probability?

Probability is defined as the ratio of the number of favourable outcomes to the total number of outcomes in other words the probability is the number that shows the happening of the event.

Given that:-

If one letter is chosen at random from the word substitute.what is the probability that the letter chosen will be a "t"?

The probability will be calculated as:-

There are 10 letters in the word SUBSTITUTE.

Out of these 10 letters, t is three times in the word

So probability will be:-

P  =  3  /  10

Therefore the probability of choosing the letter 't' will be 3 / 10.

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11
Adimas found the mean of her 11 math test scores for the first semester.
(76 +87 +65 +88 +67+84 +77 +82 +91 +85 +90) 892
81
11
Using 81 as the mean, find the variance of her grades rounded to the nearest hundredth.
02=
Find the standard deviation of her grades rounded to the nearest hundredth.

Answers

Answer:

Variance = 78.5

Standard Deviation = 8.86

Step-by-step explanation:

Given

Mean = 81

Required

Find the variance and standard deviation of the given set of data.

Provided that we already know the mean; to calculate the variance, follow the steps below.

1. Subtract the mean from each data.

76 - 81 = -5

87 - 81 = 6

65 - 81 = -16

88 - 81 = 7

67 - 81 = -14

84 - 81 = 3

77 - 81 = -4

82 - 81 = 1

91 - 81 = 10

85 - 81 = 4

90 - 81 = 9

2. Square these results

-5² = 25

6² = 36

-16² = 256

7² = 49

-14² = 196

3² = 9

-4² = 16

1² = 1

10² = 100

4² = 16

9² = 81

3. Sum these results

Sum = 25+36+256+49+196+9+16+1+100+16+81

Sum = 785

4. Calculate variance by dividing the sum by n - 1 where n = 11

So, n - 1 = 11 - 1 = 10

Variance = 785/10

Variance = 78.50

5. Calculate standard deviation by finding the square root of variance

S.D = √78.50

S.D = 8.86 (Approximated)

Answer:

71.36 and 8.45

Step-by-step explanation:

The screen shows Roberto's video game card activity. A negative number represents
money spent on games. A positive number represents money added to the card.
Card Activity
Games
-$2
Deposits
$8
- 4 - 2
0
2
4
6
-10-8-6
S
10
) How much money does Roberto have
on his card?

Answers

Answer: 6

Step-by-step explanation:

Show that (x+1)(x+3)(x+5) can be written in the form ax^3+bx^2+cx+d where a,b and c are all positive integers, and d is a negative integer

Answers

Final answer:

The expression (x+1)(x+3)(x+5) can be expanded to the form ax^3+bx^2+cx+d with a, b, and c as positive integers and d as negative by first multiplying (x+1) and (x+3) to get x^2+4x+3, which is then multiplied by (x+5) to obtain x^3+9x^2+23x+15.

Explanation:

To show that

(x+1)(x+3)(x+5)

can be written in the form

ax^3+bx^2+cx+d  where a,b and c are all positive integers, and d is a negative integer, perform multiplication for the given factors as follows:

Firstly, multiply (x+1) and (x+3) which yields x^2+4x+3.

Then, multiply this result by (x+5) which gives the final form: x^3+9x^2+23x+15.

So, a=1, b=9, c=23, and d=15 proving the original expression can be written in the stated form.

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