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3 years ago

Area of a trapezoid: 9 m by 15m by 20m

Mathematics

2 answers:

kvv77 [185]3 years ago

5 0

A=1/2 9+20×15
1/2. 29×15

217.5

exis [7]3 years ago

3 0

Equation:
$A = \frac{a + b}{2}h$

a (base) = 9
b (base) = 20
h (height) = 15

$A = \frac{9 + 20}{2}15$

$A = \frac{29}{2}15$

$A = 14.5 * 15$

$A = 217.5$

The area of the trapezoid is 217.5 m.

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3 years ago

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3 years ago

The volume of a cone is represented by the formula V = 1 T?n. If the volume of a cone is 30rt and the height is 2.5, what is the

Airida [17]

Answer:

radius is 3.38cm

Step-by-step explanation:

Note: the volume of a cone is given as

$V= 1/3 \pi r^2 h$

Step one:

Given Information

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height= 2.5cm

Required

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Step two:

substituting our data into the expression for the volume of a cone we can then solve for the radius r

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3 years ago

Quincy was stuck inside during an afternoon rainstorm. He spent 20 minutes reading books, 18 minutes eating lunch, 12 minutes wa

SSSSS [86.1K]

Answer:

The answer is B. He spent 3 minutes eating lunch for every 10 minutes.

Step-by-step explanation:

He spent stuck inside during the brainstorm for:

20+18+12+10= 60 minutes in total.

And now we want to know what he did for every 10 minutes he spent in the rainstorm. To do that we need to divide what he did for every 10 minutes by the total of minutes that he was stuck:

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