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3 years ago

Which of the following correctly completes the square for: x^2+2x=48

Mathematics

2 answers:

Ket [755]3 years ago

4 0

Answer:

(x+1)²= 49, the answer is B

Step-by-step explanation:

x² + 2x = 48

x² + 2x + (2/2)² - (2/2)²= 48 --[what we are trying to do is to complete a square by adding (2/2)² - (2/2)²]

(x+1)²= 49, the answer is B

kodGreya [7K]3 years ago

4 0

Answer:

hey I'm pretty sure it's B. (x+2)²=49

Step-by-step explanation:

x²+2x+(2\2)²=48 + (2\2)²

(x+1)²=49

2 over 2 by the power of 2 = 1

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*20 pts*

Leno4ka [110]

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The formula now is an = a1 x r ^ n-1

Just substitute a1 = 150 cm and r = 0.74

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b. The second part is:

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Mice21 [21]

Answer:3 units/s

Step-by-step explanation:

Given

$y=\sqrt{x}$

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