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2 years ago

Please help with this?

Mathematics

1 answer:

frez [133]2 years ago

8 0

$7p3 = 210$

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A regular triangular pyramid has a base area of 31.5 mm2 and a surface area of

Virty [35]

Answer:

A) 220.5 mm^2

Step-by-step explanation:

<u>Explanation</u>:-

Given A regular triangular pyramid has a base of area is 31.5mm^2

and also given surface area of triangular pyramid is 252 mm ^2

by using formula

surface area of regular triangular pyramid = base of area + half of lateral surface.

$surface area = area of the pyramid X \frac{1}{2} lateral surface$

252 = 31.5 + $\frac{1}{2} lateral surface$

$252-31.5= \frac{1}{2} lateral surface$

220.5 = lateral area of triangular pyramid

lateral area of triangular pyramid = 220.5 mm^2

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3 years ago

Jose can eat 4 hot dogs in 10 minutes. what is the rate of change per minute

harkovskaia [24]

Jan can eat 0.40 hot dogs per minute.

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3 years ago

What is the volume of the prism?<br> B=16, H=6, H=7

sergeinik [125]

Answer:

Step-by-step explanation:672

6 0

2 years ago

The table represents the start of the division of 15x3 + x2 - 3x + 2 by 3x + 2.

9966 [12]

The result of dividing $15x^{3}+x^{2}-3x+2$ by $3x+2$ is $5 x^{2} -3x+1$ with no remainder. Please check the step by step procedures in the picture attached.
We can conclude that:
The quotient of the division is $5 x^{2} -3x+1$
The remainder of the division is $0$
The divisor is $3x+2$
The dividend is $15x^{3}+x^{2}-3x+2$

4 0

3 years ago

What is the area of a circle with a radius of 21 feet?

lidiya [134]

Answer:

Area is about 1520.53

Step-by-step explanation:

$A=\pi r^{2}$

A = $\pi 21^{2}$

A ≈ 1520.53

6 0

3 years ago