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ch4aika [34]
3 years ago
13

What is -a-2 if a = -5?

Mathematics
2 answers:
Naily [24]3 years ago
7 0

Answer:

-7

Step-by-step explanation:

  • -a - 2 = -5 + -2 (different sign- keep the first number same, change the sign to         addition and the additive inverse of the second number)
  • -5 + -2 = -7

Hope this helps

Vladimir79 [104]3 years ago
3 0

Answer:

3

Step-by-step explanation:

-(-5) -2

5 - 2

3

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Answer:

C. 18:30

Step-by-step explanation:

Divide the y values (games played) by the x values (games won) to find your ratio. The ratio across each of these pairs is 1.666667...

Using the ratio provided, 18:30, divide 30 by 18.

30/18 = 1.666667...

It's a match!

Therefore, the answer is C. 18:30

6 0
4 years ago
A concrete stepping stone measures 20 square inches. What is the area of 30 such stones
Natalka [10]
The answer is 600. 30•20
7 0
3 years ago
a pet store buys bags of dog food for 30.00 dollars per bag and sells them for 54.00 dollars per bag. What is the percent markup
Alenkinab [10]

Answer:

80%

Step-by-step explanation:

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7 0
3 years ago
Factorize 9(a+1)^2-81​
Lunna [17]

Answer:9a^2+18a-72

Step-by-step explanation:

9(a+1)^2-81

9(a+1)(a+1)-81

Open brackets

9(a^2+a+a+1)-81

9(a^2+2a+1)-81

9a^2+18a+9-81

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5 0
3 years ago
Ms Adams shares out 36 pencils between Niamh and jack in the ratio 4:8
malfutka [58]

Answer:

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Step-by-step explanation:

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7 0
3 years ago
Read 2 more answers
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