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victus00 [196]
3 years ago
12

Calculate 6231+2787 by rounding each number to the nearest:

Mathematics
1 answer:
just olya [345]3 years ago
7 0
6231+2787= 9018
Which rounds off to 1000 if they want you to do it to the nearest thousand
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3 years ago
Solve 3x2 = −12x − 15.<br><br> x = −4 ± 2i<br> x = −4 ± i<br> x = −2 ± 2i<br> x = −2 ± i
diamong [38]
ANSWER

x = - 2 \pm i

EXPLANATION

We use the method of completing the squares.

The equation is
3 {x}^{2} = - 12x - 15

We rewrite the above equation to obtain;

3 {x}^{2} + 12x = - 15

We divide through by 3 to obtain;

{x}^{2} + 4x = - 5

We add half the coefficient of
x

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{x}^{2} + 4x + {2}^{2} = - 5 + {2}^{2}

The right hand side is now a perfect square.

{(x + 2)}^{2} = - 1

We now take square root of both sides to get;

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x = - 2 \pm \sqrt{ - 1}

We simplify to obtain,

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3 years ago
HELP ASAP. BRAINLIST IF YOU ANSWERED IT RIGHT
S_A_V [24]

Answer:

The answer is D.

Step-by-step explanation:

In similarity, the triangles have the same angles but different length of sides.

(Correct me if I am wrong)

3 0
3 years ago
Read 2 more answers
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