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hammer [34]
3 years ago
9

Solving for Unknown Values

Mathematics
1 answer:
kondaur [170]3 years ago
7 0

Answer:x=17 y=10

Step-by-step explanation:

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"if the standard deviation of a group of 20 scores is 15, what is the variance?"
DerKrebs [107]

We have been given that the standard deviation of a group of 20 scores is 15 and we are asked to find variance.

Since we know variance is square of standard deviation. In order to find out the variance of the given data we have to take the square of 15.

\text{ Variance}=\sigma^{2}\\
=15^{2}=225

Therefore, our variance is 225.


7 0
3 years ago
After a snowstorm in the town of Golden Glen, the morning temperature was – 10°F. But by the afternoon, the temperature had rise
spayn [35]

Answer:

7°F

Step-by-step explanation:

We have the following information from the question;

Morning temperature = -10°F

Increase in temperate = 17°F

Afternoon temperature = the unknown

Since;

Increase in temperature = Afternoon temperature - morning temperature

Then;

Afternoon temperature = increase in temperature + morning temperature

Afternoon temperature = 17°F + (-10°F)

Afternoon temperature= 7°F

5 0
3 years ago
What is 436/85 as a mixed number.?
ivann1987 [24]

Answer:

5  11/85

Step-by-step explanation:

First see how many times a whole number can be found.

436/85 = 5.1294

The denominator goes into the numerator 5 times.

Now we find a new numerator.

436 - (85 * 5) = 11 (this is the amount left over after we made 5 wholes.)

Now we see 5 11/85

It cannot be simplified further.

7 0
2 years ago
Read 2 more answers
What is true about the figure? In the figure, angles C and D are a Therefore angle C must measure ​
Nuetrik [128]

Answer

In the figure, angles C and D are a  

✔ linear pair

Therefore, angle C must measure  

✔ 56°

Step-by-step explanation:

3 0
3 years ago
What is the volume of the water in graduated cylinder A?
Kipish [7]

9514 1404 393

Answer:

  21

Step-by-step explanation:

The volume is read at the bottom of the meniscus. Here, the volume is indicated as 21.

_____

<em>Additional comment</em>

We expect the units are mL, but the problem statement does not say.

4 0
2 years ago
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