Answer:
x = 19
Step-by-step explanation:
2x - 10 = 28
2x = 38
x = 19
Best of Luck!
Answer:
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Step-by-step explanation:
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Answer:

Step-by-step explanation:
We are given the recursive formula:

This is the recursive formula for an arithmetic sequence.
The explicit formula for an arithmetic sequence is given by:

Where d=3 is the common difference.
We plug in this values to get:

We now expand and simplify to get:

We simplify to obtain:

Part A : formula for circumference = pi*D or 2piR
for circle A.... 8*pi=25.12
therefore pi=3.14
for circle B.... 3*pi=9.42
therefore pi=9.42/3
pi=3.14
part B : formula for Area =

for circle A.... 50.24=pi*(8/2)sqr...(because diameter/2= radius)
pi=50.24/16
pi=3.14
for circle B... 7.065=pi*(3/2)sqr...
pi=7.065/2.25
pi=3.14
what do you observe?
the values for pi are all equal... therefore pi is constant.
Answer: 120 degrees
Explanation: Flat surfaces are equal to 180 degrees. 180 minus 60 is 120.