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3 years ago

Solve for all values of x by factoring. x^2+3x+8=-3x+3

Mathematics

1 answer:

docker41 [41]3 years ago

6 0

Answer:

x = -1,-5

Step-by-step explanation:

X^2 + 3x + 5 = -3x

x^2 + 6x + 5 = 0

(x + 5)(x + 1) = 0

x = -1,-5

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dusya [7]

Answer:

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Step-by-step explanation:

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3 years ago

.21 of what number is 7.98

AlladinOne [14]

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3 years ago

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sukhopar [10]

Answer:

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Step-by-step explanation:

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3 years ago

Read 2 more answers

What do you do to the b value to correctly complete the square?

mash [69]

Answer:

Step-by-step explanation:

B is correct: We Divide it (the coefficient b) by 2 and square the result.

3 0

2 years ago

Read 2 more answers

Determine

Luden [163]

Answer:

$\mu_{x} = 64, \sigma_{x} = 12.83$

Step-by-step explanation:

The Central Limit Theorem estabilishes that, for a random variable X, with mean $\mu$ and standard deviation $\sigma$ , the sample means with size n of at least 30 can be approximated to a normal distribution with mean $\mu_{x} = \mu$ and standard deviation $\sigma_{x} = \frac{\sigma}{\sqrt{n}}$

In this problem, we have that:

$\mu = 64, \sigma = 77, n = 36$

$\mu_{x} = 64, \sigma_{x} = \frac{77}{\sqrt{36}} = 12.83$

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3 years ago