Please help asap 25 pts + brainliest to righ/best answer!! (=

Mathematics

2 answers:

Lady bird [3.3K]4 years ago

7 0

Answer:

Step-by-step explanation:

A linear term a variable to the power of one. but there is none of those so theres is no linear term. A quadratic term is a variable to the power of 2, there is one of those so our quadratic term is x^2. A constant term is a term with no variable, thats -7. Our answer is A.

quester [9]4 years ago

6 0

Answer:

The answer is A.

Step-by-step explanation:

This is my spare account so I can mark you brainliest

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<h3>What is a confidence interval of proportions?</h3>

A confidence interval of proportions is given by:

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

In which:

$\pi$ is the sample proportion.

z is the critical value.

n is the sample size.

The margin of error is given by:

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

In this problem, we have a 95% confidence level, hence $\alpha = 0.95$ , z is the value of Z that has a p-value of $\frac{1+0.95}{2} = 0.975$ , so the critical value is z = 1.96.