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olchik [2.2K]
4 years ago
14

Plz hep me Use 1.9 as the radius for the sphere

Mathematics
2 answers:
Yuliya22 [10]4 years ago
5 0
The formula for the sphere: (exact)

4/3πr³

4/3π(1.9³)

4/3π(5.7)
 
7.6π³

(approximate)
4/3π(1.9³)

4/3π(5.7)
 
<span>7.6π³
</span> 
7.6(3.14)

=23.864³

just olya [345]4 years ago
3 0
Well what i was taught that first you multiply 2 and 3.14 which equals 6.28 and then you multiply 6.28 with 1.9. HOPE THAT HELPED
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frosja888 [35]

Answer: 52 square cm

Step-by-step explanation:

The given surface area formula of a rectangular prism,

S = 2 wl + 2 lh + 2 hw

Where  is the length, w is the width and h is the height of the prism,

Here, length, l = 2 cm,

Width, w = 3 cm

And, Height, h = 4 cm

Thus,The required surface area of the prism,

S = 2 × 3 × 2 + 2 × 2 × 4 + 2 × 4 × 3

S = 12 + 16 + 24 = 52 square cm.

6 0
3 years ago
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crimeas [40]

Answer:

hope this helps you out good luck with your math

5 0
3 years ago
Enrico deposited $2000, in a savings account. Each month he will deposit an additional $25. Which kind of function best models t
AfilCa [17]

Answer:

<em> Linear model </em>

The function f(x) which represents the total amount in the savings account in x months is given by:           f(x)=25x+2000

Step-by-step explanation:

Given:

Enrico deposited $2000 in a savings account.

Each month he will deposit additional $25.

This shows that the rate at which the amount is increasing each month is constant.

Therefore, the model will be  linear with a slope 25.

So , if x represents the number of months.

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Then the function f(x) is given by: f(x)=25x+2000

3 0
3 years ago
PLEASE HELP ME!!!
Taya2010 [7]
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B: 44 Students
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