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arlik [135]
4 years ago
13

Plzzzzzzzzzzzzzzzzz help quick

Mathematics
1 answer:
Sergeeva-Olga [200]4 years ago
3 0

Answer:

y=-2x-7 D

Step-by-step explanation:

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Timothy evaluated the expression using x = 3 and y = –4. xy-2 3x2y−4 1. (1 3 )x−1y2 2. (1 3 )3−1(−4)2 3. (1 3 )(1 31 )(−4)2 4. (
Sergio039 [100]
If this is for E2020 the answer is
 D)<span>No, his value of </span><span> should be positive because an even exponent indicates a positive value. 
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5 0
3 years ago
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What expression is the simplified form of “-12+5a-a-6a+8a+8+3a”? Please explain your reasoning.
kramer

Combine like terms:

-12 + 5a - a - 6a + 8a + 8 + 3a

-12 + 5a - a - 6a + 8a + 8 + 3a

5a - a = 4a

4a - 6a = -2a

-2a + 8a = 6a

6a + 3a = 9a

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Answer

9a - 4

4 0
3 years ago
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Solve this step by step
Kaylis [27]

Step-by-step explanation:

the formula to calculate a circumference is

x \times \pi

(consider x as the diameter)

so I'll be noting the circumference as C alongside the circle's ranking

a.

ca = 6 \times 22 \div 7 \\  = 44 \div 7

b.

cb  = 7 \times 22 \div 7 \\  = 154 \div 7 \\  = 22

c.

cc \:  = 4 \times 22 \div 7 \\  = 88 \div 7

hope I helped

8 0
3 years ago
Please help mee!!! tia​
Wewaii [24]

Answer:

D. 3y + 1

Step-by-step explanation:

3 0
3 years ago
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What is 34×67 what is it
g100num [7]

Answer:

2278

Step-by-step explanation:

6 0
3 years ago
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