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1 answer:
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Answer:
The volume of the sphere with radius 8 cm is 2143.573 centimeters³
Step-by-step explanation:
Given as :
The radius of the sphere = r = 8 cm
Let The volume of sphere = v cm³
<u>Now, According to question</u>
Volume of sphere = × π × radius³
where r is radius of sphere
π = 3.14
Or, v = × 3.14 × r³
Or, v = × 3.14 × 8³
Or, v = × 1607.68
Or, v =
∴ v = 2143.573 cm³
So, The volume of the sphere = v = 2143.573 cm³
Hence, The volume of the sphere with radius 8 cm is 2143.573 centimeters³ Answer
Answer:
93
Step-by-step explanation:
The average is calculated as
average =
On 3 quizzes
= 73 ( multiply both sides by 3 )
sum = 219
On 4 quizzes, letting x be the score on fourth test
= 78 ( multiply both sides by 4 )
sum + x = 312 , that is
219 + x = 312 ( subtract 219 from both sides )
x = 93
She must score 93 on the next quiz