Answer:
4
Step-by-step explanation:
Using the rule of exponents/ radicals
⇔
, thus
=
= 4
9. In the figure below, Angle 1 is congruent to Angle 2.
1 answer:
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Answer : Rena's weekly gross earnings are $976.31.
Step-by-step explanation :
As we are given total earning of Rena per year is $50,768.
Now we have to calculate her weekly gross earnings.
As we know that in one year there are 52 weeks.
That means,
1 year = 52 weeks
According to the question:
As, Rena earns in 52 weeks = $50,768
So, Rena earns in 1 week =
= $976.31
Therefore, Rena's weekly gross earnings are $976.31.
Answer:
7. A = π
8. A = 6.25π
9. A = 16π
Step-by-step explanation:
When you have a bunch of similar problems that all use the same formula, it is usually convenient to solve the problem in generic terms, then put in the specific numbers.
You are asked to find A, and you are given the formula ...
To rewrite this as an equation for A, you divide by its coefficient, 4π.
If you like, you can go one step further, replacing C with kπ. Now, you have ...
__
7. k=2, A=(2^2)/4·π
A = π
__
8. k=5, A=(5^2)/4·π
A = (25/4)π
A = 6.25π
__
9. k=8, A=(8^2)/4·π
A = 16π