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Nostrana [21]
3 years ago
11

Which of the following is the best approximation of the volume of a sphere with a 7 cm radius?

Mathematics
2 answers:
White raven [17]3 years ago
8 0

To find the volume of a sphere you would use the equation: \frac{4}{3}πr³

You would plug in the radius in r

Your equation would look like this now:

\frac{4}{3}π(7)³

When you solve that you would get:

1436

Since it's 3 dimentional you would use ⇒ ³

Your answer would be B. 1436cm³


Zielflug [23.3K]3 years ago
7 0

the answer is 1436.03 but your approximation is 1436

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7 + 7x - (2x) + 3 if x = -4
frutty [35]

Answer:

-10

Step-by-step explanation:

7 + 7(-4) - (2(-4)) + 3

7 - 28 - (-8)+3

7 - 28 +8 +3

= -10

4 0
2 years ago
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Simon took out an unsubsidized student loan of $43,000 at a 2.4% APR,
BlackZzzverrR [31]

Answer: $241.16

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Log base 9 m - log base 9 (m-4)=-2
choli [55]
Hello,

log base 9(m/(m-4))=-2
==>m/(m-4)=9^(-2)
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4 0
3 years ago
30 subtracted from 4 times a number is greater than the opposite of 10
irakobra [83]
If you're trying to make an inequality, it would be:

30 - 4x > -10. 
4 0
3 years ago
Please help! I keep on getting the wrong answer!
valentina_108 [34]

Answer:

CODE: 1977.98

Step-by-step explanation:

A.

(To get the closest answer, round the circumference to the nearest ten thousandth.)

C = 2(3.14)r                      Circumference formula: C = 2πr

C = 2(3.14)(3)

C = 18.84

B.

A = (3.14)r²

A = (3.14)(3)²

A = (3.14)(9)

A ≈ 28.26

C. (It's asking for the circumference.)

C = 2(3.14)r

C = 2(3.14)(58)

C ≈ 364.24

D. (It's a linear pair, which is 180 degrees.)

4x + 2x = 180

6x = 180

x = 30

m∠ABD = 4x

m∠ABD = 4(30)

m∠ABD = 120°

E. (∠GHI & ∠JHK are vertical angles, so they are congruent.)

x + 7 = 3x - 21

28 = 2x

14 = x

F. (x = 14)

m∠JHK = 3x - 21

m∠JHK = 3(14) - 21

m∠JHK = 42 - 21

m∠JHK = 21°

G. (Supplementary - two angles that add up to 180 degrees.)

180 - 84

= 96°

CODE: E(C - D) - F(G - B) - A

CODE: 14(364.24 - 120) - 21(96 - 28.26) - 18.84

CODE: 14(244.24) - 21(67.74) - 18.84

CODE: 3419.36 - 1422.54 - 18.84

CODE: 1977.98

8 0
1 year ago
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