Calculate the volume of the regular triangular pyramid

Mathematics

1 answer:

snow_lady [41]3 years ago

7 0

Answer:

70.83 ft³

Step-by-step explanation:

The volume of a pyramid is:

$\frac{bh}{3}$ , where b is the base area and h is the height.

Let's first find the area of the base.

$17\cdot5=85\\85\div2=42.5$

Multiplying this by 5:

$42.5\cdot5=212.5$

Dividing by 3:

$212.5\div3=70.83$ .

Hope this helped!

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Can someone please help me with these two please I'll appreciate it :)

s344n2d4d5 [400]

4.

$\sqrt{64}=8\\\\8\dfrac17=8.14285714...\\\\8.\overline{14}=8.14141414...\\\\ \dfrac{15}2=7,5\\\\\\ \boxed{\ \dfrac{15}2\ \ \textless \ \ \sqrt{64}\ \ \textless \ \ 8.\overline{14}\ \ \textless \ \ 8\dfrac17\ }$

5.

$\sqrt{18}$ doesn't belong with the other three because it is irrational number
The other three can be expressed as a ratio between two <span>integers.

$-\dfrac{10}2=\dfrac{-10\ }2\\\\-13.4=-13\frac4{10}=\frac{-134}{\ 10}\\\\ 22.\overline7=22\frac79=\frac{205}9\\\\\\ \sqrt{18}=\sqrt{9\cdot2}=\sqrt9\cdot\sqrt2=3\sqrt2$
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7 0

3 years ago

The area of a rectangle is 162/3 ft2 . The length is 61/4 . Find the width. Show all work

brilliants [131]

Answer:

I have gotten 216/61, but I am not sure if this is right.

Step-by-step explanation:

By using the "Keep It, Change It, Flip It" tactic, I was able to come up with an answer and simplify it.

1. Keep the original divisor.

162/3

2. Change the sign.

Division becomes multiplication.