Answer:
49
Step-by-step explanation:
Solve. Note that the power sign is 2. When a number has a power, you are essentially multiply the same number (the power sign's number) of times over.
In this case, your power sign is 2, so you will multiply 7 twice:
7 x 7 = 49
49 is your answer.
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Function rule: a = 20w + 115
Slope: 20
Initial value: 115
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We start with $115 in the account. This is the initial value. Each week we add on $20.
So we add $20 for 1 week
We add 2*20 = $40 for 2 weeks
We add 3*20 = $60 for 3 weeks
etc etc
In general, we add 20*w dollars for w weeks onto 115 to get a = 20w+115
The slope is 20 because this is the rate of change, ie how fast the account grows. It grows 20 dollars per week.
Answer:
8 inches
Step-by-step explanation
the volume is length x width x height
so the equation would be 8 x 8 x (height) = 512
8x8 is 64, and you divide 512 by 64 which is 8
You could make this super easy by letting g(x) =
and f(x) =
and then the composition would be to take g(x) and put it into the x in f(x) to give you your