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Iteru [2.4K]
3 years ago
9

PLEASE HELP I WILL MARK BRAINLIEST DUE IN 5 MINUTESlook at attachment ​

Mathematics
1 answer:
Mumz [18]3 years ago
5 0

Answer:

A: -9a

Step-by-step explanation:

Hope that helps!

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What are the coordinates of the midpoint of ab?
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Your answer will be A because you have to get the sum of 4 and 8 and then divide by 2. Which is 6 for the x coordinate. The you need to take the sum of -5 and -1 and then divide by 2. Which is -3 for the y coordinate. So the answer is (6,-3).
7 0
3 years ago
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Given that 7x – 2y = 30
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Answer:

x=32/7

Step-by-step explanation:

7x-2(1)=30  Plug in 1 as y and simplify.

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  <u>+2 +2</u>

7x=32         Divide both sides of the equation by 7.

<u>/7   /7</u>

x=32/7

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8 0
2 years ago
In a standardized IQ test, scores are normally distributed with a mean score of 100 and a standard deviation of 15. Find the pro
Zanzabum

Answer:

0.0475

Step-by-step explanation:

First find the z-score.

z = (x − μ) / σ

z = (125 − 100) / 15

z = 1.67

Use a calculator or chart to find the probability.  Using a chart:

P(Z > 1.67) = 1 − P(Z < 1.67)

P(Z > 1.67) = 1 − 0.9525

P(Z > 1.67) = 0.0475

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A teacher asks students to list the math lessons they learned on nine random school days in the past month. She evaluates the st
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<span>Hope this helps: C. Convenience sampling</span>
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15) It is given that the charge of the waffle cone = $1.85

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C = 1.85 + 0.6x

16) To find the cost for 6 scoops of ice cream, put x = 6 in the above expression and simplify.

C = 1.85 + 0.6(6)

   = 1.85 + 3.6

   = 5.45

Hence, cost of 6 scoops of ice cream = $5.45.                                                                                

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3 years ago
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