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kirza4 [7]
2 years ago
8

Which of the following is a solution of x2+5x=-2

Mathematics
1 answer:
diamong [38]2 years ago
7 0

x^2 + 5x = -2

x^2 + 5x + 2 = 0

We need to use the quadratic formula.

In the formula, a = 1, b = 5 and c = 2.

See picture for quadratic formula. Plug in the value for a, b, and c into the formula and do the math.

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jeanine Baker makes floral arrangements. She has 13 different cut flowers and plans to use 7 of them. How many different selecti
Ksju [112]

A total of 1,716 selections of the 7 flowers are possible.

Step-by-step explanation:

Step 1:

There are 13 flowers from which Jeanine Baker plans to use 7 of them.

To determine the number of selections that are possible we use combinations.

The formula for combinations is; ^{n} C_{r}=\frac{n !}{(n-r) ! r !}.

Step 2:

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So ^{13} C_{7}=\frac{13 !}{(13-7) ! 7 !} = \frac{13 !}{(6) ! 7 !} = 1,716.

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3 years ago
20. Joaquin tak 4-hours to clean a pool; Sherrie takes 1--hours. Calculate the time difference in hours. Express your answer in
Ber [7]
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What is the distributive property to expand the algebraic expression.5(2f - 6g)
Gnoma [55]

Answer:

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Step-by-step explanation:

we have:

5(2f - 6g)

we apply distributive property:

5(2f - 6g)

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finally we have:

10f-30g

7 0
4 years ago
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