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3 years ago

The midpoint of ab is =m, −3−2 . one endpoint is =a, 2−8 . find the coordinates of the other endpoint,

Mathematics

1 answer:

Semmy [17]3 years ago

4 0

Point b would be (-8,4) because you subtract 5 from x and add 6 to y

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Describe the sampling distribution of p(hat). Assume the size of the population is 30,000.

Naya [18.7K]

Answer:

a) $\mathbf{\mu_ \hat p = 0.6}$

b) $\mathbf{\sigma_p =0.01732}$

Step-by-step explanation:

Given that:

population mean $\mu$ = 30,000

sample size n = 800

population proportion p = 0.6

The mean of the the sampling distribution is equal to the population proportion.

$\mu_ \hat p = p$

$\mathbf{\mu_ \hat p = 0.6}$

The standard deviation of the sampling distribution can be estimated by using the formula:

$\sigma_p = \sqrt{\dfrac{p(1-p)}{n}}$

$\sigma_p = \sqrt{\dfrac{0.6(1-0.6)}{800}}$

$\sigma_p = \sqrt{\dfrac{0.6(0.4)}{800}}$

$\sigma_p = \sqrt{\dfrac{0.24}{800}}$

$\sigma_p = \sqrt{3 \times 10^{-4}}$

$\mathbf{\sigma_p =0.01732}$

7 0

3 years ago

Fill in the table, then graph f(x)=-2x-4

expeople1 [14]

The attached graph shows a table. If it doesn't have your values, it is because you didn't share them with us.

4 0

3 years ago

Joe runs one lap around a track in 80 seconds. Joe and Jim start at the same point and run the track in opposite directions. The

inysia [295]

Joe runs one lap around a track in 80 seconds. Joe and Jim meet after 30 seconds.We know how long does it take for Joe to run one lap, so we can calculate what distance he runs in 30 seconds:
He runs half lap for 40 seconds. He runs quarter lap for 20 minutes and he runs 1/8 lap for ten minutes. So for 30 seconds he runs 3 * 1/8 lap=3/8 lap.
Because Jim runs in opposite direction this means that he will meat with Joe at 1-3/8=5/8 lap. So, Jim runs 5/8 lap for 30 seconds.
1/8 lap Jim runs for 30/5=6 seconds, so Jim needs 8*6=48 seconds to run the lap.
After 30 seconds Joe has run e runs

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4 years ago

1046.4 carried out to two decimal places

julia-pushkina [17]

Answer:

1046

Step-by-step explanation:

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4 years ago

A bathroom tile consist of regular hexagons surrounded by regular triangles as shown below.find the measure of one interior angl

Anettt [7]

I’m sorry I don’t see a diagram for this. Could you please scan one?

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4 years ago