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3 years ago

A: 10 B: 70 C: 30 D: 90

Mathematics

1 answer:

tatuchka [14]3 years ago

3 0

A. 10

because 80 - 10 = 70 & 90 - 2(10) = 70

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Whitepunk [10]

Answer:

$N(t)=84(1+0.0405)^t$ .

Step-by-step explanation:

We have been given that $N(11)=130$ and $N(0)=84$ . We are asked to write N as a discrete exponential function of t of the form $N(t)=A(1+r)^t$ .

Using our given information, we can set an equation as:

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Using our given information, we will get:

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Switch sides:

$(1+r)^{11}=1.5476190476190476$

Take 11th root of both sides:

$\sqrt[11]{(1+r)^{11}}=\sqrt[11]{1.5476190476190476}$

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$r\approx 0.0405$

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3 years ago

If a student has an average exam score between 70 and 79, he will earn a grade of C in his algebra course. Suppose he has three

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Answer:

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Step-by-step explanation:

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Answer: i am also looking for the answer so far i’ve gotten x=200 but it told me it was wrong feel free to try it i guess

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