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3 years ago

How did you find each square root?

Mathematics

1 answer:

AnnZ [28]3 years ago

8 0

Answer:

......

Step-by-step explanation:

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If f(x) = 2x ^ 2 - 5 and g(x) = x ^ 2 - 4x - 8 find (f - g)(x)

choli [55]

Answer: (f-g)(x) is equivalent to f(x) - g(x)

So that would be (2x²-5) - (x²-4x-8) = 2x² - x² + 4x + 8 - 5 = x² + 4x + 3

Hope this helps.

5 0

2 years ago

Select all of the choices that are equal to (-5) - (-12) -7 7 (-5)+12 (-5)+(-12)

Roman55 [17]

Answer:

the awnser is. (-5) + (-12)

7 0

3 years ago

Read 2 more answers

Solve the system of linear equations. (enter your answers as a comma-separated list. if there is no solution, enter no solution.

Neporo4naja [7]

There is no system to solve for

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3 years ago

A survey of 865 voters in one state reveals that 408 favor approval of an issue before the legislature. Construct the 95% confid

katrin [286]

Answer:

The 95% confidence interval for the true proportion of all voters in the state who favor approval is (0.4384, 0.5050).

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of $\pi$ , and a confidence level of $1-\alpha$ , we have the following confidence interval of proportions.

$\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}$

In which

z is the zscore that has a pvalue of $1 - \frac{\alpha}{2}$ .

For this problem, we have that:

$n = 865, \pi = \frac{408}{865} = 0.4717$

95% confidence level

So $\alpha = 0.05$ , z is the value of Z that has a pvalue of $1 - \frac{0.05}{2} = 0.975$ , so $Z = 1.96$ .

The lower limit of this interval is:

$\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.4717 - 1.96\sqrt{\frac{0.4717*0.5283}{865}} = 0.4384$

The upper limit of this interval is:

$\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.4717 + 1.96\sqrt{\frac{0.4717*0.5283}{865}} = 0.5050$

The 95% confidence interval for the true proportion of all voters in the state who favor approval is (0.4384, 0.5050).

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3 years ago

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frosja888 [35]

Classify the graph as a linear function, nonlinear function, or relation (non- function) 10 O A. Linear function B.

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3 years ago

How did you find each square root? ​

How did you find each square root?