suppose y varies directly with x. if y= 24 when x = 4, what is y when x = 9?

Answers

Answer 1

Answer: y=54

Step-by-step explanation: so 24/4 is 6 soooo 9*6=54 ez


Answer 2

Answer:

y =54

Step-by-step explanation:

We can use the equation y =kx

If we know y and x we can solve fork

24 = k*4

24/4 = k

6 =k

y = 6x

Substitute in 9

y =6*9

y =54



Related Questions

find the mean of the following numbers.

-2, 9, -10, 3, 5, 1


A. -6

B. -1

C. 1

D. 6

Answers

Answer:

C - 1

Step-by-step explanation:

The mean is the sum total of all the given value within the data set divided by the number of values in the data set. By counting, you can find that we have 6 values in our data set.

First thing you need to do is add all the numbers given together in order to get the sum of the values in the given data set. Follow these steps presented below:

-2 + 9 - 10 + 3 + 5 + 1

7 - 10 + 3 + 5 + 1

- 3 + 3 + 5 + 1

0 + 5 + 1

5 + 1

6

Now, in order to find the mean, take the sum (6) and divide by the amount of numbers there are; 6.

6/6 = 1

Therefore, the mean is 1.

Hope this helps!

This is converting to polar form, I need help and the answer too.

Answers

Answer:

2 cis (7/6 pi)

Step-by-step explanation:

r = sqrt( a^2 + b^2)

r = sqrt (-sqrt(3) )^2 + (-1)^2)

   = sqrt(3 +1)

    = sqrt(4)

    = 2

theta  = arctan (b/a)

theta = arctan (-1/-sqrt(3))

theta = 30

but this is in the third quardrant  -a and -b

so add 180

theta = 210 degrees

convert this to radians

210 * pi/180 = 210/180 * pi = 21/18 * pi = 7/6 * pi


r cis (theta)

2 cis (7/6 pi)

NEED HELP PLEASE!
Consider the function represented by the equation 16b = 4r - 12. write the equation in function notation, where b is the independent variable. Must show work for full credit

Answers

Answer:

r(b) = 4b +3

Step-by-step explanation:

There are only two variables and the one that is not b is r. So, this amounts to solving for r. Divide the given equation by the coefficient of r:

... 4b = r -3

Add the constant:

... 4b +3 = r

Express in function notation.

... r(b) = 4b +3

Which statement is true about the product square root of 2 (5 + square root of 8 )?
It is rational and equal to 7.
It is rational and equal to 9.
It is irrational and equal to 4 + square root of 10.
It is irrational and equal to 4 + 5 square root of 2.

Answers

Answer:

It is irrational and equal to 4 + 5 square root of 2.

Step-by-step explanation:

[tex]\sqrt{2}(5+\sqrt{8})=5\sqrt{2}+\sqrt{2\cdot 8}=5\sqrt{2}+\sqrt{16}\\\\=4+5\sqrt{2}[/tex]

The square root of 2 in the result makes the result irrational.

Answer:

It is irrational since the square root sign in the answer is present.

Step-by-step explanation:

We are given with two factors: square root of 2 and 5 + square root of 8. We use a scientific calculator that displays irrational answers. The product of the two factors is 4 + 5 square root of 2. The answer is irrational since the square root sign in the answer is present.

Choose the equation below that represents the line passing through the point (2, -4) with a slope of one half.

y = one halfx + 5
y = one halfx − 3
y = one halfx − 5
y = one halfx + 3

Answers

Answer:

y = (1/2)x - 5

Step-by-step explanation:

Try the answers:

... -4 ≠ (1/2)·2 + 5

... -4 ≠ (1/2)·2 - 3

... -4 = (1/2)·2 - 5 . . . . . the third choice works

... -4 ≠ (1/2)·2 + 3

___

You can write the point-slope form equation and simplify.

... y -k = m(x -h) . . . . . . equation for line of slope m through point (h, k)

... y -(-4) = (1/2)(x -2) . . . filled in with your values, m=1/2, (h, k) = (2, -4)

... y = (1/2)x -1 -4 . . . . subtract 4, eliminate parentheses

... y = (1/2)x - 5 . . . . . simplified. (Matches the 3rd selection.)

Answer: y = one half x − 5

Step-by-step explanation:

We know that , the equation of line that passes through point (a,b) and has slope m is given by :-

[tex](y-b)=m(x-a)[/tex]

Given : Point = (a,b)=(2, -4)

Slope = [tex]\dfrac{1}{2}[/tex]

Then, the equation of the line will be (substitute all the values in the above formula) :-

[tex](y-(-4))=\dfrac{1}{2}(x-2)[/tex]

[tex]\Rightarrow\ y+4=\dfrac{1}{2}(x-2)[/tex]

[tex]\Rightarrow\ y+4=\dfrac{1}{2}x-1[/tex]

Subtract 4 from both sides , we get

[tex]y=\dfrac{1}{2}x-1-4[/tex]

[tex]y=\dfrac{1}{2}x-5[/tex]

Hence, the correct answer is y = one half x − 5

PLEASE HELP NEED ASAP!!!

Answers

Answer:(a) y = 5/2x +3(b) y -4 = -1/2(x -1) ⇒ y = -1/2x +9/2(c) Consistent; the lines have different slope(d) (x, y) = (1/2, 17/4)Step-by-step explanation:

(a) To make use of the forms of the equation for a line this problem requires, we must first calculate the slope (m) of the line between the two given points. That is computed by ...

... m = (change in y)/(change in x)

... m = (8 -3)/(2 -0) = 5/2

The second given point tells us the y-intercept (b) is 3, so the equation for the line is ...

... y = mx + b

... y = 5/2x + 3

(b) As in part (a), we must calculate the slope of the line. That is ...

... m = (change in y)/(change in x)

... m = (4 -3)/(1 -3) = 1/(-2) = -1/2

Using the first point (h, k) in the point-slope form of the equation of a line, we have ...

... y -k = m(x -h)

... y -4 = -1/2(x -1) . . . . . point-slope equation

Simplifying this, we get

... y = -1/2x +1/2 +4

... y = -1/2x +9/2 . . . . . slope-intercept equation

(c) The slopes of the two equations are different, so they must intersect at exactly one point. The equations are consistent.

(d) We can substitute the "y" from one equation into the other to give ...

... 5/2x +3 = -1/2x +9/2

... 3x = 3/2 . . . . . . . add 1/2x -6/2

... x = 1/2 . . . . . . . . divide by 3

Using the first equation to find y:

... y = (5/2)·(1/2) +3 = 5/4 +12/4

... y = 17/4

The point of intersection is (x, y) = (1/2, 17/4).

What is the exact value of x?

5*21^5x = 16

Answers

[tex]\bf \textit{Logarithm of exponentials} \\\\ log_a\left( x^b \right)\implies b\cdot log_a(x) \\\\[-0.35em] \rule{34em}{0.25pt}[/tex]

[tex]\bf 5\cdot 21^{5x}=16\implies 21^{5x}=\cfrac{16}{5}\implies \stackrel{\textit{taking \underline{log } to both sides}}{\log\left( 21^{5x} \right)=\log\left( \cfrac{16}{5} \right)} \\\\\\ 5x\log(21)=\log\left( \cfrac{16}{5} \right)\implies 5x=\cfrac{~~\log\left( \frac{16}{5}\right)~~}{\log(21)}\implies x=\cfrac{~~\log\left( \frac{16}{5}\right)~~}{5\log(21)} \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ ~\hfill x\approx 0.0764094095937~\hfill[/tex]

Answer:

X=log 3.2/5 log 21

Step-by-step explanation:

X=0.0764094

Question is in the picture, I dont get it.

Answers

Answer:

a = 0, b = 1/2

Step-by-step explanation:

Multiplication and division of complex numbers in polar form is pretty simple.

... a·Cis(α) × b·Cis(β) = ab·Cis(α+β) . . . . . multiply magnitudes; add angles

... a·Cis(α) / (b·Cis(β)) = (a/b)·Cis(α-β) . . . divide magnitudes, subtract angles

In your case, you have ...

... 2·Cis(120°) / (4·Cis(30°)) = (2/4)·Cis(120° -30°) = (1/2)·Cis(90°)

Of course, Cis(90°) = cos(90°) +i·sin(90°) = 0 +i.

... (1/2)·Cis(90°) = 1/2·(0 +i) = 0 + 0.5i

_____

Comment on the use of a calculator

It helps to be aware of how your calculator handles complex numbers. This one can express complex numbers in exponential format, equivalent to a polar form, but requiring specific notation. In this case, the variable D has been assigned the value π/180 so multiplying by it converts degrees to radians. The result of the division is (1/2)i, not 1/(2i).

HELP!!
Monette began heating a liquid with a starting temperature of 62.5°F. The temperature increased by 5° per minute.

What is the recursive rule that represents this situation?\
an=
a1=

Answers

Greetings!

Answer:

an = 65 + 5[tex]_{n - 1}[/tex]

a1 = 65

Step-by-step explanation:

If the begining value is 65, then a1 has to be itL

a1 = 65

Then, if this amount increased every minute then 5 has to be added to this value each time:

an = 65 + 5

But this means that 5 is added to 65 every time with no increase, so the five must me multiplied by the n value:

an = 65 + 5[tex]_{n}[/tex]

a2 = 65 + 10 = 75

But this value should be 70 because it is the first point after 65 so it should be +5 not +10

To do this we can simply subtract one from the n value that is being multiplied by 5:

an = 65 + 5[tex]_{n - 1}[/tex]

Which is the recursive rule!


Hope this helps!

A square is cut in half on the diagonal creating two equal triangles each triangle has an area of 0.72 square units what is the side length in units of the original square?

Answers

Final answer:

The side length of the original square is calculated by associating the area of the triangle with the square's side length. It is determined to be 1.2 units.

Explanation:

To find the side length of the original square, we need to first understand how the area of a triangle is related to the square. When a square is cut on the diagonal, it forms two triangles. The area of a triangle is given by the formula 1/2 * base * height. In the case of these triangles, the base and height are the same, and equal to the side length of the square, which we'll call 'a'.

The area of one triangle is given as 0.72 square units. So, 0.72 = 1/2 * a * a. Simplifying this, we get a² = 2*0.72 = 1.44. Taking the square root of both sides, we find that a = √1.44 or a = 1.2 units.

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An art teacher has a total of 7/8 pound of clay. the teacher puts 1/16 pound of clay at each work station. The teacher sets up an equal number of work stations in each of 2 classrooms. How many work stations does the teacher set up in each of the classrooms?

Answers

There are 7 work stations.

This is because:

7/8 divided by 1/6 divided by 2 =

7/8 times 16/1 times 1/2 = 7


Hope this helps :)



Workstations the teacher set up in each of the classrooms is is mathematically given as,

⇒ x = 7

What is an expression?

Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.

We have to given that;

An art teacher has a total of 7/8 pound of clay.

And, The teacher puts 1/16 pound of clay at each workstation.

Since, The teacher sets up an equal number of workstations in each of 2 classrooms

Generally the equation for the workstations is mathematically given as,

1/16(x) = 7/8

x = 16 × 7/(8×2)

x = 7

Therefore, The workstations the teacher set up in each of the classrooms is, ⇒ x = 7

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whats the most easiest way to find the mean...of a dot plot

Answers

"Easiest" depends on several factors, including your understanding of what you're trying to do and of how the mean is calculated.

The most straight-forward way is to

multiply the value of a column by the number of dots in that columnadd the productsdivide by the total number of dots

One of my favorite ways is this.

Choose a value near the middle of the plot and call it the (provisional) mean. Often, I will choose a value that has the most dots, or that has dots fairly symmetrically distributed around it.Match dots that are symmetrically located around that mean and cross them off. That is, for every dot that is 1 unit above the (provisional) mean, cross off it and a dot that is 1 unit below the (provisional) mean. (With some experience, you can recognize non-symmetrical dots that can cancel. For example, one that is +2 and one that is +3 together will cancel one that is -5.)For the dots left over, multiply the number of dots by their distance from the (provisional) mean, and add the products. Most likely, some will be positive, some will be negative.Divide the total from the previous step by the total number of dots. Add that (signed) result to the provisional mean. This gives the true mean.

If the distribution is reasonably symmetrical, this second method gives you fewer (and smaller) products to compute, and you can probably do them in your head.

What is the sale tax for a purchase of $2,500 and what is the cost of an item with a sales tax of $108?

Answers

Answer:

4.32%

Step-by-step explanation:

Step 1:

To solve this, we must know how to find sales tax first. Let's use this equation:

t = p × r

Let t stand for the total amount of sales tax

Let c stand for the purchase

Let r stand for the sales tax rate.

Step 2:

Now, let us plug in what is given. We know that the purchase made cost $2,500:

t = $2,500 x r

Annddd, we also know that the sales tax is $108:

$108 = $2,500 x r

Therefore, our equation is:

$108 = $2,500 x r

Step 3:

We can simplify this to:

$108 = $2,500r

Step 4:

All we need to do is divide each side by 2500 because the goal is get r all by itself

[tex]\frac{108}{2500} =\frac{2500r}{2500}[/tex]

Step 5:

This gives us:

r = 0.0432

Step 6:

We're not done! Since we are dealing with a percentage, we would multiply .0432 by 100% and that gives us our final answer of


4.32% is our sales tax


During a one-month sales contest, Joaquin sold 56 cars and Annette sold 49 cars. Which ratio is equivalent to the ratio of the number of cars Annette sold to the number of cars Joaquin sold? A. 56:49 B. 3:4 C. 8:7 D. 98:112

Answers

Answer:

D. 98:112

Step-by-step explanation:

We want to find Annette:Joaquin

49:56

Both of these numbers are divisible by 7. so we need to divide both of them by 7.

7: 8

Now multiply by each side by 14

7*14 : 8*14

98: 112

the answer is 8:7!! When you divide 56:49 by 7 it gives you 8:7 :-)

What is the quotient (6x4 − 15x3 − 2x2 − 10x − 4) ÷ (3x2 + 2)? (6 points)

Answers

Answer:

2x^2 -5x -2

Step-by-step explanation:

See the attached for the polynomial long division.

15. convert the following values into scientific notation, a) 42,670,000 B) 0.0000008

Answers

Answer:

8x10^-7

Step-by-step explanation:

First one you have correct however the second one you were close lets figure it out:

0.0000008

In order to move the decimal in front of the eight we have to "jump" 7 times to the right.  Furthermore since we have to move the decimal to the right our exponent will be negative.  That means that we have:

[tex]0.0000008=8 \times 10^{-7}[/tex]


~~~Brainliest Appreciated~~~

Final answer:

To express in scientific notation, move the decimal so it is after the first non-zero digit, and count the number of steps as the power of 10. 42,670,000 becomes 4.267 * 10^7 and 0.0000008 becomes 8 * 10^-7.

Explanation:

To convert a value to scientific notation, you need to express it as a product of a number between 1 and 10 and a power of 10.

For the value 42,670,000 we rewrite it as 4.267 * 10^7 which means first you move the decimal to the left until it is after the first digit and then count how many places you moved it to determine the power of 10. For the value 0.0000008, it's a similar process, but slightly different because it is less than one. We get 8 * 10^-7, the power of 10 is negative to reflect that we moved the decimal to the right.

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A cylindrical coffee can has a height of 14 centimeters. The radius of the base is 5 centimeters. What is the area of its label?

Answers

Final answer:

The area of the label for a cylindrical coffee can with a height of 14 cm and a radius of 5 cm is approximately 440 square centimeters.

Explanation:

The subject in this case is Mathematics, and the question pertains to the use of geometry to determine the area of a label on a cylindrical coffee can. Specifically, the question asks to calculate the area of the cylindrical surface (lateral surface), which will be used as the label area. To calculate this, one needs to use the formula for the lateral surface area of a cylinder, which is 2πrh, where r is the radius and h is the height of the cylinder.

Given a cylinder with a height of 14 centimeters and a radius of 5 centimeters, the area of the label can be calculated as follows:

Area = 2π(5 cm)(14 cm) = 2π×5 cm×14 cm = 2×3.1416×5 cm×14 cm ≈ 440 cm².

Standard FIF.2 DOK: 18. An outfielder throws a ball vertically upward with a velocity of 30 meters per second. Its distance from the ground after t seconds is approximately equal to 30t -5t2 meters. How many seconds will it take the ball to reach its maximum distance from the ground?

Answers

Answer:

t = 3

Step-by-step explanation:

y = - 5t^2 + 30t                  Take out - 5 as a common factory = -5(t^2 - 6t)                     Complete the squarey = -5(t^2 - 6t + (6/2)^2)      Add (6/2)^2 outside the brackets. Why add?y = -5(t^2 - 6t + 9) + 9         Express the bracketed part as a perfect squarey = -5(t - 3)^2 + 9    The highest point reached will be nineThat occurs when -5(t -3)^2 = 0That happens when t = 3

The ball thrown vertically upward reaches its maximum height after 3 seconds, as calculated by setting the derivative of the position function, which represents the velocity, to zero.

The question is about determining how many seconds it will take for a ball thrown vertically upward to reach its maximum height. The ball's position as a function of time is given by 30t - 5t2 meters. To find when the ball reaches its maximum height, we need to find the time at which the velocity is zero. The velocity function is the derivative of the position function, which is 30 - 10t. Setting the velocity equal to zero gives us the time when the ball reaches its maximum height:

0 = 30 - 10t

t = 3 seconds

The ball will reach its maximum distance from the ground after 3 seconds.

Determine if each function is linear or nonlinear.

Answers

Answer:

To see if a table of values represents a linear function, check to see if there's a constant rate of change. If there is, you're looking at a linear function!


Step-by-step explanation:


Answer:

linear: y = x+5; 5x +5y = 25nonlinear: everything else

Step-by-step explanation:

If it has an exponent, it's non-linear. (There are other ways it can be non-linear, too, but this is the one applicable here.)

rusty burns 6 calories per minute swimming and 10 calories per minute jogging. In the morning Rusty burns 175 calories walking and swims for x minutes. In the afternoon Rusty will jog for x minutes. How many minutes must he jog to burn at least as many calories y in the afternoon as he did in the morning

Answers

Answer:

at least 43 1/4 minutes (or 44 rounded)

Step-by-step explanation:

I set up an equation:

175+6x=10x

Isolate x:

175=4x

x=43.25


is this a college question? (just curious)

Solve the equation. PPLLLLLLLLZZZZZZZZ HELP!!!!!!!!!!!!!!!!!!!!!


-7/3n = - 42


A. n = 92


B. n = 294


C. n = -21 4/7


D. n = 18

Answers

Answer:

The correct answer is 1 / 18.

Step-by-step explanation:

We are given the following equation for which we need to solve for the variable n:

[tex]-\frac{7}{3n} =-42[/tex]

So for solving this, we will rearrange the equation in a manner that isolates the variable n, making it the subject of the equation.

[tex]-\frac{7}{3n} =-42[/tex]

[tex]-\frac{7}{42} =3n[/tex]

[tex]\frac{1}{6} =3n[/tex]

[tex]n=\frac{1}{6*3} \\\\n=\frac{1}{18}[/tex]

Therefore, the value of n is equal to 1 / 18.

If the perimeter of the rectangle is 30 cm and value of j is 8.

a) Create an equation that you can use to find the value of h

b) Solve the equation. What is the value of h?

PART A

Equation:__________________________


PART B

Solve the equation. Show your work


Answer: h =______________________



Answers

2j +2h =30. That is the equation

2(8) + 2h = 30
16+ 2h =30

Subtract 16 from both sides
2h = 14
H=7

The glee club has $90 to spend on pens and pencils. Each pen costs $0.75 and each pencil costs $0.15. Let x represent the number of pens, and let y represent the number of pencils.

Part A
Select the equation that describes the number of club pens and pencils that the glee club can buy.

A. 0.15x + 0.75y = 90
B. 0.75x + 0.15y = 90
C. 0.90(x + y) = 90
Part B
What is the greatest number of each type of writing tool that the club can buy?

greatest number of pens = ?


greatest number of pencils = ?

Answers

Answer:

Step-by-step explanation:

Given that total amount available is 90$

x represent the number of pens, and  y represent the number of pencils.

cost of each pen is 0.75 and cost of each pencil is 0.15

Then we have total cost = cost of pens + cost of pencils

= [tex]0.75x+0.15y[/tex]=90

Hence option B is right

For finding out the greatest number of each type of writing tool, we can make the other 0 and find out

Hence maximum x = [tex]\frac{90}{0.75} =120[/tex]

maximum y =[tex]\frac{90}{0.15} \\=600[/tex]

Part A

The equation that describes the number of club pens and pencils that the glee club can buy is 0.75x + 0.15y = 90

Part B

Greatest number of pens that the club can buy = 120

Greatest number of pencils that the club can buy = 600

Cost of each pen = $0.75

Number of pens = x

Cost of each pencil = $0.15

Number of pencils = y

Total cost on pens and pencils = $90

(Cost of each pen) x (Number of pens)  +  (Cost of each pencil)x(Number of pencils)  = Total cost

The equation that describes the number of club pens and pencils is:

0.75x  +  0.15y    =   90

The club buys the greatest number of pens when:

0.75x  = 90

x  =  90/0.75

x  =  120

Greatest number of pens that the club can buy = 120

The club buys the greatest number of pens when:

0.15x  = 90

x  =  90/0.15

x  =  600

Greatest number of pencils that the club can buy = 600

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What is m<PTX
someone please help me

Answers

Answer:

60°

Step-by-step explanation:

The triangle PTX is equilateral, so all of its angles are 60°.

___

Adding up the lengths that make PX, you find they're the same as the lengths that make PT. The sides of ΔPQU are all the same length, so all the triangles are similar and equilateral.

Receive 99 points if answered correctly with steps!

Point E is the midpoint of side BC of parallelogram ABCD (labeled counterclockwise) and AE ∩ BD =F. Find the area of ABCD if the area of △BEF is 3 cm2.

Answers

Answer:

36 cm²

Step-by-step explanation:

1. ΔBEF & ΔADF are similar; 2. the height of ΔABE is 3height of ΔBEF; 3. area of ΔABE is 3 area of ΔBEF; 4. area of ΔABE= area of ΔACE; 5. area of ΔABC = 2 area of ΔACE; 6. Area of ABCD = 2 area of ΔABC = 12 area of BEF.

36 cm²

Step-by-step explanation:

1. ΔBEF & ΔADF are similar; 2. the height of ΔABE is 3height of ΔBEF; 3. area of ΔABE is 3 area of ΔBEF; 4. area of ΔABE= area of ΔACE; 5. area of ΔABC = 2 area of ΔACE; 6. Area of ABCD = 2 area of ΔABC = 12 area of BEF.

Which graph can be used to find the solution for the equation 4x + 2 = x + 3?

Answers

Answer:

option C

Step-by-step explanation:

to find the solution for the equation 4x + 2 = x + 3, graph the equations

y= 4x+2  and y=x+3

Lets make a table for each equation

x          y= 4x+2

-1          4(-1) + 2= -4+2 = -2

0           4(0) + 2= 2

1             4(1) + 2= 6

plot all the points on graph

Lets make table for second equation

x          y= x+3

-1          -1+3 = 2

0           0+3 = 3

1             1+3 = 4

Plot the point on the graph and make a line

option C is correct

Answer:

The required graph of the equation is shown below:

Step-by-step explanation:

Consider the provided equation.

[tex]4x + 2 = x + 3[/tex]

Solve the equation for x.

[tex]4x-x=3-2[/tex]

[tex]3x=1[/tex]

[tex]x=\frac{1}{3}[/tex]

Now substitute x=1/3 in [tex]y=4x + 2[/tex]

[tex]y=\frac{4}{3} + 2=\frac{10}{3}[/tex]

So, the graph will be the lines which intersect at (1/3,10/3)

The correct graph is 3rd one.

Alternate method:

The equation [tex]4x + 2 = x + 3[/tex] can be written as:

[tex]y= 4x + 2 \\y= x + 3[/tex]

Draw the graph for both equation.

For [tex]y= 4x + 2[/tex]

Substitute x=0 in above equation,

[tex]y= 4(0) + 2[/tex]

[tex]y=2[/tex]

Substitute y=0 in above equation,

[tex]0= 4x + 2[/tex]

[tex]-2=4x[/tex]

[tex]x=\frac{-1}{2}[/tex]

Now use the coordinate (0,2) and (-1/2,0) to draw the graph of straight line.

For [tex]y=x + 3[/tex]

Substitute x=0 in above equation,

[tex]y=3[/tex]

Substitute y=0 in above equation,

[tex]0=x + 3[/tex]

[tex]x=-3[/tex]

Now use the coordinate (0,3) and (-3,0) to draw the graph of straight line.

Hence, the required graph of the equation is shown below:

What is the value of x in the solution to the following system of equations? x − 2y = 2 3x + y = 6 Answer for Blank 1:

Answers

Answer:

x=2, y=0

Step-by-step explanation:

x − 2y = 2

3x + y = 6

I am going to use elimination to solve this system.

Multiply the second equation by 2

2(3x+ y) =2* 6

6x +2y =12

Now add the first equation.  This will eliminate y

6x +2y =12

x − 2y = 2

-----------------------

7x = 14

Divide by 7

7x/7 =14/7

x=2

We still need to find y

3x + y = 6

3x+y=6

We know x so substitute it in

3(2) +y =6

6+y=6

Subtract 6 from each side

6+y-6 = 6-6

y=0

i will give the brainlesit

Answers

Answer:

option 4

Step-by-step explanation:

tan30° = 17/x

=>1/√3 = 17/x

=>x = 17√3

for y,

sin30° = 17/y

=>1/2 = 17/y

=>y = 34

For this case we must find the value of y (Hypotenuse) and the value of x (leg adjacent to the 30 degree angle) of the triangle shown.

By definition:

[tex]Tangent (30) = \frac {17} {x}\\x = \frac {17} {Tangent (30)}\\x = \frac {17} {\frac {\sqrt {3}} {3}}\\x = \frac {17 * 3} {\sqrt {3}}\\x = \frac {51 \sqrt {3}} {3}\\x = 17 \sqrt {3}[/tex]

Now, we look for the value of y:

[tex]Sine (30) = \frac {17} {y}\\y = \frac {17} {sine (30)}\\y = \frac {17} {\frac {1} {2}}\\y = 34[/tex]

Answer:

[tex]x = 17 \sqrt {3}\\y = 34[/tex]

Option D


Joshua read 1/6 of his book in 1/3 hour. At this rate, how much of his book will he read in an entire hour?

Answers

Answer:

1/2 of his book

Step-by-step explanation:

1/3 of an hour = 1/6 of the book

3/3 of an hour = 3/6 or 1/2 of the book read

Jana paid a $75 initial fee to join a sports club and a monthly fee of $14 per month. Write an expression that shows how much Jana spends after x months of membership at the sports club.

Answers

Answer:

y=14x+75 where y is equal to 14x+75. Hope this helps.

Step-by-step explanation:


Answer:

y=14x+75

Step-by-step explanation:

y=mx+b is the slope intercept form which you will use for equations like these.

the M represents what it recurring, and in this case it is 14 dollars per month

The b represents your initial value and in this case it is 75 dollars


The 14x represents that it is 14 per, and the 75 represents the initial cost.

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