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4 years ago

7

Evaluate the expression 15x + 4 for x = − 1 1/2.

1 answer:

ratelena [41]4 years ago

7 0

A -18 1/2 yessssssurrr

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4 years ago

An aquarium has a base in the shape of a trapezoid. The base is 100

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Answer:

$Volume = 210L$

Step-by-step explanation:

Given

Base:

$Front = 100cm$

$Back = 50cm$

$Width = 40cm$

$Height = 70cm$

Required

Determine the volume (in litres)

First, we need to calculate the area;

Base on the parameters given, we have:

$Area = \frac{1}{2}(Front + Back) * Width$

$Area = \frac{1}{2}(100cm + 50cm) * 40cm$

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$Volume = 210000cm^3$

$1cm^3 = 0.001L$

So:

$Volume = 210000 * 0.001L$

$Volume = 210L$

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3 years ago

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