2 years ago

What is the number you must add to complete the square x^2 - x

Mathematics

1 answer:

nadya68 [22]2 years ago

7 0

lol lol lol lol lol lol lol lol lol lol lol lol lol lol lol lol lol lol lol lol lol lol lol lol

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Tommy does 15 joules of work to push the pencil over 1 meter. How much force did he use?

AfilCa [17]

Work = Force * distance
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3 years ago

Could you explain how you got the answer to please

Zina [86]

Answer:

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Step-by-step explanation:

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2 years ago

Which two values of x are roots of the polynomial below?

Julli [10]

Answer:

B. and C.

Step-by-step explanation:

1. Set the polynomial equal to zero:

x² + 5x + 7 = 0

2. Plug the given values of a, b, and c into the quadratic formula:

$x=\frac{-5+-\sqrt{5^{2}-4(1)(7) } }{2(1)}$

3. Solve the square root:

$x=\frac{-5+-\sqrt{25-4(1)(7)} }{2(1)}$

$x=\frac{-5+-\sqrt{25-28} }{2(1)}$

$x=\frac{-5+-\sqrt{-3} }{2(1)}$

4. Simplify the rest:

$x=\frac{-5+-\sqrt{-3} }{2}$

5. Separate the solutions:

$x=\frac{-5+\sqrt{-3} }{2} , x=\frac{-5-\sqrt{-3} }{2}$

Thus, options B and C are the answers.

hope this helps!

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2 years ago

Possible values for the area A of the rectangle shown are 12

KatRina [158]

Answer:

idc its 12

Step-by-step explanation:

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3 years ago

an antelope can run at a speed of 61 miles per hour. What is this speed in yards per second? Round to the nearest hundredth.

arlik [135]

20.3 yards per second.

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