2 years ago

What is the answer ?

Mathematics

1 answer:

pav-90 [236]2 years ago

4 0

Answer:

A is the correct answer.

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Find the distance between points M and N M= (3,-2) N= (5,-6)

Olin [163]

Answer:

$MN = \sqrt{(5-3)^{2}+(-6-(-2))^{2} } = \sqrt{2^{2}+(-4)^{2} } = \sqrt{20} = 2\sqrt{5}$

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2 years ago

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What is the measure of ABC?

Kobotan [32]

Answer:

the answer to it is A. 75

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2 years ago

Use the expression (10p+10)+(8p−1). Simplify using properties of operations and then factor the expression using the GCF.

Fofino [41]

Answer:

9 (2p + 1)

Step-by-step explanation:

(18p + 9)

GCF = 9

so, divide everything by 9

9 (2p + 1)

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1 year ago

The ages of trees in a forest are normally distributed with a mean of 25 years and a standard deviation of 4. Approximately what

harkovskaia [24]

Answer:

78.88%

Step-by-step explanation:

We have been given that

$\mu=25,\sigma=4,x_1=20,x_2=30$

The z-score formula is given by

$z-\text{score}=\frac{x-\mu}{\sigma}$

For $x_1=20$

$z_1=\frac{20-25}{4}\\\\z_1=-1.25$

For $x_2=30$

$z_2=\frac{30-25}{4}\\\\z_2=1.25$

Now, we find the corresponding probability from the standard z score table.

For the z score -1.25, we have the probability 0.1056

For the z score 1.25, we have the probability 0.8944

Therefore, the percent of the trees that are between 20 and 30 years old is given by

0.8944 - 0.1056

= 0.7888

=78.88%

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2 years ago

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sofia can paint a house in 10 hours juana can paint the same in 9 hours how long would it take them if they worked together

lubasha [3.4K]

If Sofia and Juana worked together I would take them 1 hour

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2 years ago

What is the answer ?​

What is the answer ?