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emmainna [20.7K]
3 years ago
9

Please help me! I need help on this question!

Mathematics
1 answer:
schepotkina [342]3 years ago
5 0

Answer:

C and A

Step-by-step explanation:

expand the things in parentheses so for C

1/2(x + 16) = 1/2(x) + 1/2(16) = 1/2 x + 8

same process for A

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Simplify the expression<br>5-2(9)|+9^2÷3​
Delicious77 [7]

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14

Step-by-step explanation:

Simplify the following:

5 - 2×9 + 9^2/3

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5 - 2×9 + 81/3

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5 - 2×9 + 27

Hint: | Multiply -2 and 9 together.

-2×9 = -18:

5 + -18 + 27

Hint: | Evaluate 5 + 27 using long addition.

| 1 |  

| 2 | 7

+ | | 5

| 3 | 2:

32 - 18

Hint: | Subtract 18 from 32.

| 2 | 12

| 3 | 2

- | 1 | 8

| 1 | 4:

Answer: 14

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