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2 years ago

The ratio of boys to girls in the sixth grade is 2:3. If there are 80 boys, how many are girls? Solve using unit rates.

Mathematics

1 answer:

Aliun [14]2 years ago

6 0

Answer:n 80

Step-by-step explanation:

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Is line e perpendicular to line g?

FromTheMoon [43]

Answer:

Yes.

Step-by-step explanation:

Always.

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3 years ago

A scientist measured the water pressure at different depths. She made a table showing her findings. The x-values represent the d

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3 years ago

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Complementary and Supplementary angles

pav-90 [236]

Answer:

B and D are supplementary there is no complementary angle

Step-by-step explanation:

supplementary angles add upto 180° therefore B and D when added should be equivalent to 180° therefore they are supplementary angles

complementary angles are angles that add upto 90° therefore in the question provided there is no complementary angle

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2 years ago

If a data point has a corresponding z-score of -1.5, then it is one and a half standard deviations above the mean value. 1. True

TEA [102]

Answer: False.

Step-by-step explanation:

For any random variable x,

Formula to calculate the z-score : $z=\dfrac{x-\mu}{\sigma}$

, where $\mu$ = Mean

$\sigma$ = Standard deviation

Let x be the data point has a corresponding z-score of -1.5.

Then , we have

$-1.5=\dfrac{x-\mu}{\sigma}$

$-1.5\sigma=x-\mu$

$\mu-1.5\sigma=x$

i.e. x is one and a half standard deviations below the mean value.

( one and a half = $1+\dfrac{1}{2}=1.5$ )

Therefore , the given statement is false.

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2 years ago

What’s the missing angle

ICE Princess25 [194]

Answer:

Step-by-step explanation:

Well, if i rember correctly, all triangle have a total of 180 degrees, so 120 plus 35 = 155.

Then do 180 - 155 to get 25, which woud be your answer

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3 years ago

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