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Sever21 [200]
3 years ago
11

Help please I don’t know what to do

Mathematics
2 answers:
Zepler [3.9K]3 years ago
6 0

Answer:

B

Step-by-step explanation:

Combine Like terms

sammy [17]3 years ago
5 0

Answer:

The answer is letter B

Step-by-step explanation

Simply combine like terms in which

-2x^2 + 7x^2 = 5x^2

8x + 4x = 12x

-9 + 2 = 7

So we come up with the answer of the option letter B

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I have completed everything except for the last box. Can someone please help me on the last box? Thank you for your help!
Lera25 [3.4K]

Answer:

2.5\%

Step-by-step explanation:

From the Empirical Rule, 95% of the data shown falls between 63 and 95. The other 5% is evenly distributed to each side (since the distribution is bell-shaped), hence there being \boxed{2.5\%} of scores less than 63.

The directions say to give the approximate percentage which is vague. You may have to input 3\% if it does not accept 2.5\%.

8 0
3 years ago
Even the measure ofAngle six is 62 what is the measure of angle five
Agata [3.3K]

<em>∠5 = 118</em>

Step-by-step explanation:

If you look closely at this image, you can see that ∠6 and ∠5 together will be equal to line c.

A straight line is equal to 180 so if we do...

180-62

= 118.

<u>∠5 will be equal to 118.</u>

If we go even further, because vertical angles are congruent...

∠7 = 62

∠8 = 118

8 0
3 years ago
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Digiron [165]
A is the average mean
5 0
3 years ago
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If the critic rates a total of 100 restaurants what is the best prediction for the number of restaurants she gives exactly 3 sta
Katarina [22]

Answer:

Probability = 1 / 5

Step-by-step explanation:

Assuming that rates are from 1 to 5 ; with equal probability of being 1, 2 , 3 , 4, 5 each.

So, probability of 3 stars = Outcomes with 3 stars / Total outcomes

= 1 / 5

7 0
3 years ago
1. Denise makes 21 quarts of ice cream. She stores the ice cream in containers
Mkey [24]

Answer:

21 containers

Step-by-step explanation:

21/1=1

4 0
4 years ago
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