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3 years ago

PLEASEEEE HELP ASAPPP ILL MARK BRAINLIEST IMPORTANT TO SHOW YOUR WORK

Mathematics

1 answer:

geniusboy [140]3 years ago

4 0

Answer:

AC = 7.5 cm

Step-by-step explanation:

Given that the triangles are similar then the ratios of corresponding sides are equal, that is

$\frac{AC}{DE}$ = $\frac{BC}{DE}$ , substitute values

$\frac{AC}{3.5}$ = $\frac{7+8}{7}$ , that is

$\frac{AC}{3.5}$ = $\frac{15}{7}$ ( cross- multiply )

7AC = 52.5 ( divide both sides by 7 )

AC = 7.5 cm

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Answer:

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3 years ago

PLEASE HELP

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Answer:

A rectangular prism in which BA = 20 and h = 6 has a volume of 120 units3; therefore, Shannon is correct

Step-by-step explanation:

step 1

Find the area of the base of the rectangular pyramid

we know that

The volume of the rectangular pyramid is equal to

$V=\frac{1}{3}BH$

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we have

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substitute and solve for B

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step 2

Find the volume of the rectangular prism with the same base area and height

we know that

The volume of the rectangular prism is equal to

$V=BH$

we have

$B=20\ units^{2}$

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substitute

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therefore

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patriot [66]

Answer:

Step-by-step explanation:

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