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3 years ago

HELP PLEASE!!! I'm desperate!!

Mathematics

1 answer:

yarga [219]3 years ago

4 0

Answer:

X(-64/3, 0) 8/3

Step-by-step explanation:

We can set this up using a system of inequality

16/8 = x/-8

We do this because we know whatever scaled 0,6 to become 0,16 will scale -8,0 to become x,0. Since we know that the Y value will remain 0, we can plug in x.

So,

16/8 = x/-8, cross multiply to get 6x = -128

divide to get x = -128/6 and reduce for -64/3

the scale factor is 16/6, which reduces to 8/3

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Simplify fully WITHOUT using a calculator (3√2 -12)(2√2+1)

natita [175]

Answer:

$33\sqrt{2} +12$

Step-by-step explanation:

$(3\sqrt{2} - 12)(2\sqrt{2} + 1)$

$6\sqrt{2} + 3\sqrt{2} -12(2\sqrt{2})+12$

$9\sqrt{2}+24\sqrt{2}+12$

$33\sqrt{2} +12$

6 0

2 years ago

Read 2 more answers

A person's blood glucose level and diabetes are closely related. Let x be a random variable measured in milligrams of glucose pe

soldier1979 [14.2K]

Using the normal distribution, it is found that:

a) 0.8599 = 85.99% probability that x is more than 60.

b) 0.1788 = 17.88% probability that x is less than 110.

c) 0.6811 = 68.11% probability that x is between 60 and 110.

d) 0.0643 = 6.43% probability that x is greater than 125.

In a normal distribution with mean $\mu$ and standard deviation $\sigma$ , the z-score of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

It measures how many standard deviations the measure is from the mean.
After finding the z-score, we look at the z-score table and find the p-value associated with this z-score, which is the percentile of X.

In this problem:

The mean is of 87, thus $\mu = 87$ .
The standard deviation is of 25, thus $\sigma = 25$ .

Item a:

This probability is 1 subtracted by the p-value of Z when X = 60, thus:

$Z = \frac{X - \mu}{\sigma}$

$Z = \frac{60 - 87}{25}$

$Z = -1.08$

$Z = -1.08$ has a p-value of 0.1401.

1 - 0.1401 = 0.8599

0.8599 = 85.99% probability that x is more than 60.

Item b:

This probability is the p-value of Z when X = 110, thus:

$Z = \frac{X - \mu}{\sigma}$

$Z = \frac{110 - 87}{25}$

$Z = 0.92$

$Z = 0.92$ has a p-value of 0.8212.

1 - 0.8212 = 0.1788.

0.1788 = 17.88% probability that x is less than 110.

Item c:

This probability is the p-value of Z when X = 110 subtracted by the p-value of Z when X = 60.

From the previous two items, 0.8212 - 0.1401 = 0.6811.

0.6811 = 68.11% probability that x is between 60 and 110.

Item d:

This probability is 1 subtracted by the p-value of Z when X = 125, thus:

$Z = \frac{X - \mu}{\sigma}$

$Z = \frac{125 - 87}{25}$

$Z = 1.52$

$Z = 1.52$ has a p-value of 0.9357.

1 - 0.9357 = 0.0643.

0.0643 = 6.43% probability that x is greater than 125.

A similar problem is given at brainly.com/question/24863330

7 0

3 years ago

What is 65% of 60??? PLZZZZZZZZZZ HELP thanks! :)

a_sh-v [17]

All we have to do is multiply them by each other accept we change the percent into a decimal.
65% = 0.65
soooo
0.65 x 65 = 42.25
answer? =42.25
i hope this was helps:)
and don't forget 2
MARK ME BRAINLIEST! :D

4 0

3 years ago

Read 2 more answers

Jackson has 1 cup of butter. If he wants to use all the butter, how many batches of brownies can he make?

nikdorinn [45]

Answer:

Step-by-step explanation:

3 0

3 years ago

Recess began at 11:12am. It ended at 11:44am. How long was recess?

Soloha48 [4]

Answer: