Answer:
8pi
Step-by-step explanation:
circumference of the circle=2 pi r(radius)
=2pi×d(diameter)/2
=2 × pi × 8/2
=8 pi cm
Answer:
n = 5.4
Step-by-step explanation:
Equation: 4n = 21.6
To solve this equation for n, divide both sides by 4 to get n by itself.
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<u>Step 1: Divide both sides by 4</u>
4 * n / 4 = 21.6 / 4
n = 5.4
Answer: n = 5.4
By the Pythagorean theorem,

Answer:
To round you take the last diget and round it either up or down based on the number
if the number is 0-5 you round down
if the number is 6-9 you round up
so in this case you would round down to 6.4.930
Step-by-step explanation: