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Maslowich
4 years ago
11

Please help me with this problem. I am not sure if I am correct.

Mathematics
1 answer:
jek_recluse [69]4 years ago
3 0

Answer:

only -7

Step-by-step explanation:

Just plug them in.

so for x=-7 \sqrt{-2(-7)-5}=(-7)+4\\\sqrt{9}=-3 \\ 3=-3So this one is extraneous

Then if you plug -3 in you get 1 = 1 so this one is not extraneous.  if you need me to work this one out let me know.  

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Factor the trinomial x^2 - 7x + 10
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Answer:

(x-5) (x-2)

Step-by-step explanation:

x^2 (-2x-5x) +10

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7 0
4 years ago
[2x - y=0
otez555 [7]

Answer:

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Step-by-step explanation:

3 0
3 years ago
Joseph has 150 animals on his farm. ⅕ of the animals are chickens, ⅕ of the animals are cows, and the rest of the animals are go
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Answer:

90 goats

Step-by-step explanation:

Number of chickens in  farm = (1/5) of 150

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4 0
3 years ago
Read 2 more answers
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Answer:

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The length of "a" is about 6.3 mm.

7 0
3 years ago
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Ivenika [448]

Answer: y  =  4  −  2 x

Step-by-step explanation: :)

6 0
3 years ago
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