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Crazy boy [7]
2 years ago
11

What is the intermediate step in the form (x + a)2 = b as a result of completing the

Mathematics
1 answer:
Eddi Din [679]2 years ago
8 0

Answer:

(x + 7)^2 = 64

Step-by-step explanation:

x^2 + 23x – 19 = 9x - 4

x^2 + 23x - 9x = -4 + 19

x^2 + 14x = 15 = 0

Completing the square:

(x + 14/2)^2 - (14/2)^2 = 15

(x + 7)^2 - 49 = 15

(x + 7)^2 = 64

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Answer:

here you go

Step-by-step explanation:

35+a+b+c=270

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2 years ago
Can someone solve number 6, and show your work plz
Romashka [77]

Answer:

<em>3.9 kg</em>

Step-by-step explanation:

total mass = (number of nails) * (mass of one nail)

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6 0
3 years ago
5. What is the range of test B?<br> A 35<br> C<br> B 50<br> D<br> 25<br> 40
maksim [4K]

Answer:

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Step-by-step explanation:

sorry if not correct

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3 years ago
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Answer:

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Step-by-step explanation:

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3 years ago
Anyone please help me with last two I'll vote brainliest!! :))
Alja [10]

Answer:

7. y= x + 12   8. y= -1 + 4x

Step-by-step explanation:

for 7 all you need to do is subtract x from both sides to get y= 12- x, and to make it perpendicular you need to make the current slope it’s exact opposite so in this case that’s just changing the “-” symbol to an “+”.

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3 years ago
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