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Sonja [21]
3 years ago
5

What is the volume of a sphere with a radius of 4 cm? Use 3.14 for pi. Round to the nearest hundredth.

Mathematics
2 answers:
BaLLatris [955]3 years ago
5 0
\bf \textit{volume of a sphere}\\\\
V=\cfrac{4\pi r^3}{3}\quad 
\begin{cases}
r=radius\\
-----\\
r=4
\end{cases}\implies V=\cfrac{4\pi 4^3}{3}\implies V=\cfrac{256\pi }{3}
erik [133]3 years ago
3 0

Answer:

V = 50.24cm^3

Step-by-step explanation:


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Landon is building new bookshelves for his bookstore's new mystery section. Each shelf can hold 33 books. There are 1,221 myster
kvasek [131]

Answer:

37

Step-by-step explanation:

Landon is building new bookshelves for his book store

Each shelf can hold 33 books

There are 1221 mystery books

Therefore the number of shelves he will need to build can be calculated as follows

= 1221/33

= 37

Hence Landon will need to build 37 shelves

6 0
3 years ago
Which pyramids with base area B and height h have equal volumes?
Pachacha [2.7K]
Option A:

V = 1/3 * b^2 * h

V = 1/3 * 10.5^2 * 6

V = 1/3 * 110.25 * 6

V = 220.5

Option B:

V = 1/3 * b^2 * h

V = 1/3 * 3.6^2 * 8

V = 1/3 * 12.96 * 8

V = 34.56

Option C:

V = 1/3 * b^2 * h

V = 1/3 * 4.2^2 * 12

V = 1/3 * 17.64 * 12

V = 70.56

Option D:

V = 1/3 * b^2 * h

V = 1/3 * 6^2 * 8.4

V = 1/3 * 36 * 8.4

V = 100.8

I guess it's 'None of the Above'
3 0
3 years ago
Evaluate 3ab for a=2 and b=3
vampirchik [111]

Answer:

18

Step-by-step explanation:

For this problem, we will simply plug in the values of a and b into the respective variables in the expression 3ab to "evaluate" the expression.

a = 2; b = 3

3ab

Note, that when variables like a and b are smashed with a constant, the use of multiplication is in play.

3ab = 3 * a * b

With this in mind, let's plug in the values of a and b into the expression.

3ab

= 3 (2) (3)

= 3 (6)

= 18

Hence, 3ab evaluated when a=2 and b=3 is 18.

Cheers.

4 0
3 years ago
Read 2 more answers
Can someone help me plz I'm confused
muminat
9. 

2x+3+x+9 = 180 => 3x = 168 => x = 56;
m(<ABD) = 2*56 + 3 = 115.
4 0
3 years ago
the diameter of the sphere is 7 inches. What is the circumference of a cross section through the center of the model?
Lerok [7]

Answer:

<h2>10.9955742876</h2>

Step-by-step explanation:

Circumference is 2r × Pi. Circumference of half is 2r × Pi / 2

3 0
3 years ago
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