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Answers

Answer 1

Answer: To solve this, all we need to do is substitute the values of x and y at which they are the same into each equation and see if it holds true.

A. $(y)/(x) = (1)/(2)$

$(-8)/(4) = (1)/(2)$

$-2 = (1)/(2)$

Since this is not true, we can scratch choice A off our list.

B. $(y)/(x) = -2$

$(-8)/(4) = -2$

$-2 = -2$

This is true, so choice B is one of the correct answers.

C. $-2x = y$

$-2 (4) = -8$

$-8 = -8$

This equation also holds true, so choice C is also correct, but let us do the final option just for the sake of completion.

D. $x = 2y$

$4 = 2 (-8)$

$4 = -16$

This is obviously not true, so choice D is also false.

The correct answer choices are B and C.
Hope that helped! =)

Answer 2

Answer: varies directly, so x times a number = y
let z be that number
y= zx
-8=4z
z=-2
y=-2x
which is equals to y/x=-2 and -2x=y , so its B and C

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How many times greater is the value of the 6 in 560,984 than the value of the 6 in 85,560?

Mark correctly drew a heptagon on the board. How many interior angles does Mark's heptagon have?

Answers

There are 7 interior angles

Can someone help please!!

Answers

Answer:

Step-by-step explanation:

Which survey question is unbiased? A. Should the schools parking lot be paved to increase our safety B. Are you dissatisfied with the overcharges and poor service of your present phone company C. What drink do you prefer with a meal D. Do you think jones is a good mayor in spite of his questionable character

Answers

Answer: I'm pretty sure it would be either A or C but I'm leading toward C. C is your final answer

Step-by-step explanation:

Please please help me

Answers

Answer:

Look at step by step!

Step-by-step explanation:

Angle D is 90 degrees and is being split in half making both sides 45 degrees.

You can use sine to solve.

sin45 = 5/y

y= 7.07 or the sqrt of 50

Answer:

Its 5. SUpere easy

Step-by-step explanation:

What is the mean of Variable A? Express answer to one decimal place. Scatter plot on a first quadrant coordinate grid. The horizontal axis is labeled Variable A. The vertical axis is labeled Variable B. Points are plotted at (two, two), (two, eight), (four, three), (five, one), (six, three), (seven, five), (eight, six), (nine, two).

Answers

The variable A would most likely be your "independent variable."

This is just standard convention. Nothing is really saying that your independent variable can not be on your Y axis; it is just widely accepted to put your changing variable on the x and your dependent variable on the y axis.

49w^2-4=0. Simplied fraction?

Answers

Answer:

{-2/7, 2/7}

Step-by-step explanation:

Here you're being asked to solve the given equation 49w^2-4=0 for w with the hint that the solutions are fractions.

49w^2-4=0 is the product of the sum and difference of two squares:

(7w - 2)(7w + 2) = 0

Setting each factor equal to zero and solving for w, we get:

{-2/7, 2/7} as the solutions.

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