Answer:
it's A, a^9 b^6
Step-by-step explanation:
right on edge 2020
The interest rate equals 25%
Explanation:
Provided data:
Principal amount, P = $2,000
Total amount, A = $2500
Duration, t = 1 year
Interest rate, r =?
We understand:

Substituting the known values gives:


Thus, the interest rate is 25%
The result is 706.85775. First, calculate the tank's volume using the formula 13*3.14159=40.84067. Then, multiply by the height of 75 to obtain 40.84067*75=3063.05025. Next, find the volume for both the tank and sleeve together: with the sleeve's radius being 16 (13+3), calculate it as 16*3.14159=50.26544, and then 50.26544*75=3769.908. Finally, subtract the tank volume from this total volume: 3769.908-3063.05025=706.85775.
I’m not entirely certain, but here’s my attempt: d=2.5t+2.2 closely resembles y=mx+b with y=d, m=2.5, x=t, and b=2.2. To derive a new equation, we replace d and t, resulting in 1=2.5(0)+b. After simplification, we find b=1, so the new equation becomes d=2.5t+1
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