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Sav [38]
4 years ago
8

after taking nine test Carols average grade in her Italian classes 90 her teacher drops the lowest of the nine test scores to de

termine the final grade of Carols final grade is 91 what was her lowest test score

Mathematics
1 answer:
Ostrovityanka [42]4 years ago
5 0

Answer:

82

Step-by-step explanation:

The sum of scores for the 9 tests must be 90 * 9 = 810. The sum of scores for the 8 tests is 8 * 91 = 728 so the lowest score is 810 - 728 = 82.

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Step-by-step explanation:

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When a deposit of $1000 is made into an account paying 2% interest, compounded annually, the balance, $B, in the account after t
labwork [276]

Answer:

The average rate of change in the balance over the interval t = 0 to t = 5 is of $20.82 a year. This means that the balance increased by $20.82 a year over the interval t = 0 to t = 5.

Step-by-step explanation:

Given a function y, the average rate of change S of y=f(x) in an interval (x_{s}, x_{f}) will be given by the following equation:

S = \frac{f(x_{f}) - f(x_{s})}{x_{f} - x_{s}}

In this problem, we have that:

B(t) = 1000(1.02)^{t}

Find the average rate of change in the balance over the interval t = 0 to t = 5.

B(0) = 1000(1.02)^{0} = 1000

B(5) = 1000(1.02)^{5} = 1104.08

Then

S = \frac{1104.08 - 1000}{5-0} = 20.82

The average rate of change in the balance over the interval t = 0 to t = 5 is of $20.82 a year. This means that the balance increased by $20.82 a year over the interval t = 0 to t = 5.

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Cuanto es (4x+5)(4x+5)
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Answer:

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Step-by-step explanation:

4 0
4 years ago
Read 2 more answers
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