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4 years ago

Can someone awnser both problems please?? Much appreciated!

Mathematics

2 answers:

Anastaziya [24]4 years ago

8 0

For no.8 find the surface area: 2×10×2+2×15×2+10×15×2=400in².
No.9 V=2×10×15=300in³

ratelena [41]4 years ago

8 0

The surface area would be 300 inches

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Answer:

1) 1,2,3, 6

2) 1,7

3) 1, 3, 5, 9, 15, 45

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Step-by-step explanation:

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3 years ago

How many square feet of paper do you need to cover a cube with a side 10 in. long? Round your answer to two decimal places.

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4 years ago

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The height of the tallest tower in a city is 800 feet. The height of the second tallest tower in the same city is 14% less than

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Answer:

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2 years ago

Which solid has two triangular bases and three lateral faces, each in the shape of a rectangle?

Sphinxa [80]

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5 0

3 years ago

A. 12

kondor19780726 [428]

Tree casts a shadow 30 feet long. A MHS student standing near the tree casts a shadow 9 feet long. The student is 6 feet tall. What is the height of the tree? Show all work

Answer:

Option D

The height of tree is 20 feet tall

Solution:

From given question,

Shadow of tree = 30 feet

Height of tree = ?

Height of student = 6 feet

Shadow of student = 9 feet

We have to find the height of tree

We can solve the sum by proportion

$\frac{\text{height of tree}}{\text{shadow of tree}} = \frac{\text{height of student}}{\text{shadow of tree}}$

This forms a proportion and we can solve the sum by cross multiplying

$\frac{\text{height of tree}}{30} = \frac{6}{9}\\\\\text{height of tree} = 30 \times \frac{6}{9} = 30 \times \frac{2}{3}\\\\\text{ height of tree } = 10 \times 2 = 20$

Thus height of tree is 20 feet tall

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3 years ago