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2 years ago

HELP!! THIS TEST WORTH 36 POINTS!!! WILL MARK BRAINLEIST!!!!

Mathematics

1 answer:

Anestetic [448]2 years ago

5 0

Answer:

A, B, C

Step-by-step explanation:

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The two triangles are similar.<br><br> What is the value of x?

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[8/(2x-2)=(8+6)/(3x)
8/(2x-2)=14/(3x)
14(2x-2)=8(3x)
28x-28=24x
x=7
So by using the similarity of the sides, we can make ratios that can give is the value of x.<span />

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3 years ago

To decorate his bedroom, Jesse spent $148.65 on new furniture, $52.75 on paint, and $29.33 on accessories. About how much did he

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148.65

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3 years ago

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3 years ago

I don't understand this!

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2 years ago

A box has a volume of 546cm3 and a surface area of 422cm2. What are the Length, Width and Height?

Klio2033 [76]

We know that the formula for the volume of a box is:

$V =lwh$

Where:
l = length
w = width
h = height

The formula of the surface area of a box is:
$SA=2(lw+lh+wh)$

Based on the given we know the following:
$546cm^{3} =lwh$

and

$422cm^{2}=2(lw+lh+wh)$

If we factor out the given volume, you can come up with 3 numbers that will satisfy the surface area formula:

$546=6*7*13$

Let:
l = 6cm
w = 7cm
h = 13cm

Now let's try this on the surface area formula:
$422cm^{2}=2(lw+lh+wh)$
$422cm^{2}=2((6cm*7cm)+(6cm*13cm)+(7cm*13cm))$
$422cm^{2}=2(42cm^{2}+79cm^{2}+91cm^{2})$
$422cm^{2}=2(211cm^{2})$
$422cm^{2}=422cm^{2}$

The answer is then:
l = 6cm
w = 7cm
h = 13cm

Any order would be fine.

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3 years ago

HELP!! THIS TEST WORTH 36 POINTS!!! WILL MARK BRAINLE﻿IST!!!!

HELP!! THIS TEST WORTH 36 POINTS!!! WILL MARK BRAINLEIST!!!!