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Sidana [21]
3 years ago
5

10 pt

Mathematics
1 answer:
lord [1]3 years ago
5 0

Answer:

C. 434π

Step-by-step explanation:

Given:

Radius (r) = 7 in.

Height (h) = 24 in.

Required:

Surface area of the cylinder

Solution:

S.A = 2πrh + 2πr²

Plug in the values

S.A = 2*π*7*24 + 2*π*7²

S.A = 336π + 98π

S.A = 434π

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A new car is purchased for 17000 dollars. The value of the car depreciates at 12.25% per year. What will the value of the car be
Scilla [17]

Answer:

P(t=14) = 17000 (1-0.1225)^{14}= 2728.404

Step-by-step explanation:

for this case we have the following model for the cost of the car:

P(t) = P_o (1-r)^t

Where P_o is the initial amount on this case 17000, t the amount of years after the initial year and r the depreciation rate on this case:

r= \frac{12.25}{100}=0.1225

And for t =14 we can replace into the equation and we got:

P(t=14) = 17000 (1-0.1225)^{14}= 2728.404

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3 years ago
If there were 80 points scored overall, how many of them were scored by Bridgette? she scored 5% of the points
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3 years ago
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#1 - HINT - you are finding the total amount make sure you add the interest you calculate to the original deposit amount
Andreyy89

Answer:

$292.50

Step-by-step explanation:

Equation - A = P(1 + rt)

Calculation:

First, converting R percent to r a decimal

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Solving our equation:

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A = $292.50

The total amount accrued, principal plus interest, from simple interest on a principal of $260.00 at a rate of 2.5% per year for 5 years is $292.50.

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