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3 years ago

What are the factors of x2 – x – 6? Check all that apply.

Mathematics

2 answers:

Sergio [31]3 years ago

7 0

Answer:

x - 3

x + 2

Step-by-step explanation:

telo118 [61]3 years ago

4 0

X² -x -6 = (x -3)(x +2)

The factors are ...
x - 3
x + 2

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Plugging in the given values:-

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3 years ago

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vitfil [10]

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2 years ago

The proportion of students at a college who have GPA higher than 3.5 is 19%. a. You take repeated random samples of size 25 from

melomori [17]

Answer:

$\mu_{\hat{p}}=0.19$

$\sigma_{\hat{p}}=0.0785$

Step-by-step explanation:

We know that the mean and the standard error of the sampling distribution of the sample proportions will be :-

$\mu_{\hat{p}}=p$

$\sigma_{\hat{p}}=\sqrt{\dfrac{p(1-p)}{n}}$

, where p=population proportion and n= sample size.

Given : The proportion of students at a college who have GPA higher than 3.5 is 19%.

i.e. p= 19%=0.19

The for sample size n= 25

The mean and the standard error of the sampling distribution of the sample proportions will be :-

$\mu_{\hat{p}}=0.19$

$\sigma_{\hat{p}}=\sqrt{\dfrac{0.19(1-0.19)}{25}}\\\\=\sqrt{0.006156}=0.0784601809837\approx0.0785$

Hence , the mean and the standard error of the sampling distribution of the sample proportions :

$\mu_{\hat{p}}=0.19$

$\sigma_{\hat{p}}=0.0785$

8 0

3 years ago

A cone-shaped funnel has a diameter of 3.6 in. and a height of 3 in. What is the volume of the funnel? Enter your answer as a de

Sedbober [7]

V=1/3πr^2h
d=3.6 in.
r=1.8 in.
V=1/3×π×1.8^2×3
V≈10.1736 cubic inches. As a result, the volume of the funnel is 10.1736 cubic inches. Hope it help!

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3 years ago

Read 2 more answers

What is the value of the negative zero of the function, f, defined by<br> f(x) = x^2 - 16

Lelu [443]

Answer:

x = -4

Step-by-step explanation:

f(x) = x² - 16

This is the difference of squares

which factors as

f(x) = (x - 4)(x + 4)

Therefor the negative zero is

x = -4

8 0

2 years ago