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3 years ago

How do I simplify? x2 – 4 divided by x2 + 5x + 6. When working with Functions

Mathematics

1 answer:

CaHeK987 [17]3 years ago

8 0

Answer:

Step-by-step explanation:

Factor the polynomials.

x^2-4 = (x+2)(x-2)

x^2+5x+6 = (x+3)(x+2)

(x^2-4)/(x^2+5x+6) = (x+2)(x-2)/[(x+3)(x+2)] = (x-2)/(x+3)

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a random sample of high school seniors were asked whether they were applying for college. the resulting confidence interval for

Artist 52 [7]

Using the confidence interval, the margin of error is 0.02.

In the given equation we have to find the margin of error.

The resulting confidence interval for the proportion of students applying for college is (0.65,0.69).

Let p = population proportion of students applying for college

P = Sample proportion of students applying for college

ME = margin of error

So the confidence interval

CI = (P-ME, P+ME)

From the given question;

(P-ME, P+ME) = (0.65,0.69)

So lower bound= P-ME = 0.65............................(1)

Upper Bound = P+ME = 0.69............................(2)

Simplifying the Equation 1 and 2

Add equation 1 and 2 we get

2P = 1.34

Divide by 2 on both side we get

P = 0.67

Putting the value of P in the equation 2

P+ME = 0.69

0.67+ME=0.69

Subtract 0.67 on both side we get

ME = 0.02

Hence, the margin of error is 0.02.

To learn more about margin of error link is here

brainly.com/question/10501147

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1 year ago

What fraction of 1 pint is 1 cup

Nadusha1986 [10]

1\2 cup is the answer or .5 <span />

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3 years ago

Can the product of 4 and any number always be written as a sum of two equal addends

enot [183]

Answer: Yes

Step-by-step explanation:

Example : 4 x 2 = 8

8 = 4×4

Thus proven YES.

hope this helps also mark me brainliest :)

Good luck

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3 years ago

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andrezito [222]

Answer:

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Step-by-step explanation:

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3 years ago

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boyakko [2]

Answer:

A square root of 80 m

Step-by-step explanation:

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3 years ago