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2 years ago

Please help, will mark you as the brainiest! Please do NOT answer if you don’t know it!

Mathematics

1 answer:

Sholpan [36]2 years ago

3 0

Answer:

if oq or and os are bisectors then MN is 40, also it is a perpendicular angle so it would also be 40

Step-by-step explanation:

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Certain arithmetic sequence has the recursive formula an = an-1 + d

Liula [17]

The formula is an = 1+d

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3 years ago

14.849 rounded to the nearest hundredth is

NeX [460]

Answer:

14.900

Step-by-step explanation:

in 849 the 9 is not under 5 so we move it up and make the 4 a 5 and then its exactly five so we can make the 8 a 9 then cancel everything below it to a zero.

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3 years ago

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A company manufacturing computer chips finds that 8% of all chips manufactured are defective. In an effort to decrease the perce

neonofarm [45]

Answer:

The correct value of the Z-statistic is z = -1.56

Step-by-step explanation:

A company manufacturing computer chips finds that 8% of all chips manufactured are defective.

This means that the null hypothesis is:

$H_{0}: p = 0.08$

A hypothesis test is performed to determine if the additional training was effective in lowering the defect rate.

This means that the alternate hypothesis is:

$H_{a}: p < 0.08$

z-statistic:

$z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}$

In which X is the sample mean, $\mu$ is the value tested at the null hypothesis, $\sigma$ is the standard deviation and n is the size of the sample.

0.08 is tested at the null hypothesis:

This means that $\mu = 0.08, \sigma = \sqrt{0.08*0.92}$

After training was implemented, a sample of 450 chips revealed only 27 defects.

This means that $n = 450, X = \frac{27}{450} = 0.06$

The correct value of the Z-statistic is

$z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}$

$z = \frac{0.06 - 0.08}{\frac{\sqrt{0.08*0.92}}{\sqrt{450}}}$

$z = -1.56$

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2 years ago

Find the reciprocal of 10 1/2 and its reciprocal is 1

ch4aika [34]

In order to find the reciprocal of 10 1/2 you have to figure out the improper fraction. the improper fraction for that equation would be 21/2. reciprocal means opposite, so when you reciprocal a fraction, you have to put the numerator on the bottom and the denominator on the top. so, 21/2 is 2/21. 2/21 is the reciprocal for 10 1/2 :))

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3 years ago

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A box of dried fruit has 76 calories in 4 servings. How many calories are there per serving?

dimulka [17.4K]

Answer:

19 calories per serving

Step-by-step explanation:

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2 years ago