3 years ago

What are the values of A and B?

Mathematics

1 answer:

Darina [25.2K]3 years ago

6 0

I think that either A or B have to be the number of days

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bonk

Step-by-step explanation:

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3 years ago

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At the local farmers market, it costs $10 to rent a stand and $7 for every hour you stay. If you pay a total of $38, how many ho

zhenek [66]

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Step by step:
$38 - 10 = 28
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Each year, all final year students take a mathematics exam. It is hypothesized that the population mean score for this test is 8

drek231 [11]

Answer:

95% Confidence interval: (96.06,103.94)

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = 85

Sample mean, $\bar{x}$ = 100

Sample size, n = 30

Alpha, α = 0.05

Population standard deviation, σ = 11

95% Confidence interval:

$\mu \pm z_{critical}\frac{\sigma}{\sqrt{n}}$

Putting the values, we get,

$z_{critical}\text{ at}~\alpha_{0.05} = 1.96$

$100 \pm 1.96(\frac{11}{\sqrt{30}} ) = 100 \pm 3.94= (96.06,103.94)$

(96.06,103.94) is the 95% confidence interval for the population mean test score.

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3 years ago

Annie has two equal sized amounts of wax in two different colors she used 5/8 of the green wax and 1/3 of the blue wax to make s

lana66690 [7]

Find a common denominator that 8 and 3 can go into.. which is 24
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15/24 - 8/24
7/24

Hope this helped

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3 years ago

7 divided by 11187.4

DedPeter [7]

Answer:

1598.2

Step-by-step explanation:

I used a calculator on this one.

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3 years ago