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4 years ago

Which equations below represent a proportional relationship? Select all that apply.

Mathematics

1 answer:

Svetlanka [38]4 years ago

8 0

Answer:

If C) y = 1/8x then this is also the answer.

Step-by-step explanation:

Proportional relationship:

$\dfrac{y}{x}=constant$

$\dfrac{y}{x}=a\to y=ax$

A) y = 5x → a = 5

C) y = 1/8x → a = 1/8

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The diagonal of a TV is 26 inches long. Assuming that this diagonal forms a pair of 30-60-90 right triangles, what are the exact

Tema [17]

Hello,
let's assume a the width, b the heigth.

sin 30°=a/26=1/2==>a=26/2=13 (in)
cos 30°=b/26=√3/2==>b=26*√3 / 2=13√3≈22.51666.... (in)

4 0

3 years ago

Choose the answer to complete each statement

NeTakaya

Answer:

1. The slope of the line is 7/3

2. y intercept is -3

3. y= 7/3x -3

Step-by-step explanation:

To find the slope of the line you use the equation y2-y1/x2-x1

y2 and y1 are y coordinates of the 2 coordinates on the same line that you want to find the slope of and the same with x2 and x1

The y-intercept is the point where the line crosses the y axis and x= 0

the equation of a line is y= mx+b

m= slope

b= y intercept

7 0

3 years ago

Please help my exam is going on please and both question of math

omeli [17]

Step-by-step explanation:

11) PnQ=QnP

or, {1,2,3}n{1,2,3,4,5} = {1,2,3,4,5} n{1,2,3}

or, {1,2,3} = {1,2,3} .Ans

5 0

3 years ago

statuscvo [17]

Answer:

Divide both sides by 5.

Step-by-step explanation:

Divide both sides by same non-zero constant.

8 0

2 years ago

Find the value of x and y that make the quadrilateral

vitfil [10]

The quadrilateral have equal opposite sides, for example:

Then, (4x + 6) must be equal to (7x - 3), and (4y - 3) is equal to (3y + 1), therefore

$4x+6=7x-3$

We can solve that equation for x

$\begin{gathered} 4x+6=7x-3 \\ \\ 3x=9 \\ \\ x=\frac{9}{3}=3 \end{gathered}$

Hence, x = 3. Now let's solve the other equation

$\begin{gathered} 4y-3=3y+1 \\ \\ y=4 \end{gathered}$

Then the value of y is 4.

Final answers:

x = 3

y = 4

4 0

1 year ago