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Shalnov [3]
3 years ago
13

Dr. Samuel Hayden invested $750 for three years at an interest rate of 0.035. How much interest did he earn in that time?

Mathematics
1 answer:
egoroff_w [7]3 years ago
8 0

Answer:

he earned $78.75 interest.

Step-by-step explanation:

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I cut 65 cm off 2 m of rope how much is left
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2m = 200cm

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The graph shows the function f(x) = |x – h| + k. What is the value of k? k = –2.5 k = –A. k = –2.5
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k is the y-coordinate of the vertex of the function. That vertex is located at (1, -2.5).

The value of k is ...

... A. k = -2.5

5 0
3 years ago
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Can someone help me asap thx
Rufina [12.5K]

Answer:

1st = 18

2nd = -29

3rd = -6

4th= 8

Step-by-step explanation:

hope it helps

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2 years ago
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last month a parking lot had 22 spaces in each of its rows recently the lot expanded and 4 spaces were added to each row if the
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368 spaces now, why?
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7 0
3 years ago
Your lumber company has bought a machine that automatically cuts lumber. The seller of the machine claims that the machine cuts
maksim [4K]

Answer:

a) 0.0202

b)The seller's claim is not correct.

c) If the seller's claim is true we cannot have individual length of 72.15 inch.

Step-by-step explanation:

In the question it is given that

population mean, μ = 72 inch

Population standard deviation, σ = 0.5 inch

Sample size, n = 47

Sample mean, x =72.15 inch

a) z score = \frac{x-\mu}{\sigma/\sqrtr{n}} = \frac{72.15-72}{0.5/\sqrt{47}} = 2.0567

P(x ≥ 72.15) = P(z ≥ 2.0567) = 0.5 - 0.4798 = 0.0202

We calculated the probability with the help of standard normal table.

b) The sellers claim that the machine cuts the lumber with a mean length of 72 inch is not correct as we obtained a very low probability.

c)If we assume that the seller's claim is true that is the machine cuts the lumber into mean length of 72 inch then we cannot have an individual length 72.15.

Standard error = \frac{\sigma}{\sqrt{n} } = 0.0729

Because it does not lie within the range of two standard errors that is (μ±2 standard error) = (71.8541,72.1458)

4 0
3 years ago
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