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3 years ago

Find the slope of the line going through (-3,5) and (7,-9)

2 answers:

6 0

The slope of the line going through (-3,5) and (7, -9) is 7/5.

Slope Formula:

y₂ - y₁ -9 - 5 -14 7
------------- = ------------ = ------- = ----
x₂ - x₁ 7 - (-3) 10 5

xenn [34]3 years ago

3 0

Gradient = Change of y/ Change of x
= 14/10
= 1.4

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The scale factor of the scale drawing of a mirror to the actual mirror is

klio [65]

Answer:

Step-by-step explanation:

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3 years ago

Evaluate the expression when a is -5 and y is 7<br> a-5y

Sonbull [250]

Answer:

The answer is -40

Step-by-step explanation:

<h3><u>Given</u>;</h3>

a = -5
y = 7

a – 5y

Now,

a – 5y

(-5) – 5(7)

-5 – 35 = -40

Thus, The answer is -40

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3 years ago

Read 2 more answers

A store bought a tent for $230 andmarked it up 65%. The store sells thetent with an 8% tax, what is the totalcost of the tent?

Len [333]

The cost for buying the tent is $230.

65% was increasesd for selling. Then the rate is

$\begin{gathered} 230\times\frac{65}{100}=14.95 \\ So,\text{ the marked price=230+14.95=}244.95 \end{gathered}$

The tax is 8%. So this is from the marked price.

$\begin{gathered} \frac{8}{100}\times244.95=19.56 \\ 244.95-19.56=225.39 \end{gathered}$

Therefore the total cost of the tent is $225.39.

3 0

1 year ago

I need this please help me

ludmilkaskok [199]

9514 1404 393

Answer:

L'(4, -3)

Step-by-step explanation:

The reflection over the horizontal line y=-1 effects the transformation ...

(x, y) ⇒ (x, -2-y)

So, the coordinates of L are transformed to ..

L(4, 1) ⇒ L'(4, -2-1) = L'(4, -3)

4 0

3 years ago

I have a vase that is shaped like a rectangular prism. The height is 10 inches. The length of the base is 6 inches. The width of

Keith_Richards [23]

Answer:

$200in^3$

Step-by-step explanation:

To solve this, we are using the formula for the volume of a rectangular prism:

$V=whl$

where

$w$ is the width of the base

$l$ is the length of the base

$h$ is the height of the prism

We know from our problem that the height is 10 inches. The length of the base is 6 inches. The width of the base is 5 inches.

Replacing values

$V=(5in)(10in)(6in)$

$V=300in^3$

Now, to find 2/3 of that volume, we just need to multiply it by 2/3

$\frac{2}{3} V=\frac{2}{3} 300in^3$

$\frac{2}{3} V=200in^3$

We can conclude that 2/3 of the volume of the vase is 200 cubic inches.

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3 years ago