1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Norma-Jean [14]
2 years ago
5

Evaluate the function -4^3-4(-4)^2+(-4)+7

Mathematics
2 answers:
kumpel [21]2 years ago
8 0

Answer:

-125

Step-by-step explanation:

See image below:)

Furkat [3]2 years ago
4 0
7 ajajajjjajajjajajajajaj
You might be interested in
Your bedroom wall is 221 inches wide. You want to hang two posters, each 28 inches across, with an equal space between each post
olga2289 [7]

Answer:

55 inches

Step-by-step explanation:

2 posters x 28 inches each = 56

221 - 56 = 165 inches

3 blank spaces on wall

165 ÷ 3 = 55 inches between posters and on either side

5 0
2 years ago
A cereal box filling machine is designed to release an amount of 16 ounces of cereal into each box, and the machine’s manufactur
Paraphin [41]

Using the z-distribution, it is found that since the p-value is less than 0.05, there is evidence that the mean amount of cereal in each box is different from 16 ounces at 0.05 significance.

<h3>What are the hypothesis tested?</h3>

At the null hypothesis, it is tested if the mean is not different to 16 ounces, that is:

H_0: \mu = 16

At the alternative hypothesis, it is tested if the mean is different, hence:

H_1: \mu \neq 16

<h3>What is the test statistic?</h3>

The test statistic is:

z = \frac{\overline{x} - \mu}{\frac{\sigma}{\sqrt{n}}}

In which:

  • \overline{x} is the sample mean.
  • \mu is the value tested at the null hypothesis.
  • \sigma is the standard deviation of the population.
  • n is the sample size.

The parameters for this problem are:

\overline{x} = 15.75, \mu = 16, \sigma = 1.46, n = 150.

Hence:

z = \frac{\overline{x} - \mu}{\frac{\sigma}{\sqrt{n}}}

z = \frac{15.75 - 16}{\frac{1.46}{\sqrt{150}}}

z = -2.1

<h3>What is the p-value and the conclusion?</h3>

Using a z-distribution calculator, for a two-tailed test, as we are testing if the mean is different of a value, with z = -2.1, the p-value is of 0.0357.

Since the p-value is less than 0.05, there is evidence that the mean amount of cereal in each box is different from 16 ounces at 0.05 significance.

More can be learned about the z-distribution at brainly.com/question/16313918

#SPJ1

3 0
1 year ago
Can you help with 13,14,15,16 one of those or all of them please
salantis [7]
15.  the answer is 4/10 I think
5 0
3 years ago
The area of the triangle below is 2/5 square foot what is tge lenght in feet of the base of the triangle
anygoal [31]
55555555555555555555555555555555555555
7 0
3 years ago
Read 2 more answers
Simplify the expression 2x+5-x
Len [333]

2x + 5 - x simplified would be...

x + 5

8 0
3 years ago
Read 2 more answers
Other questions:
  • What is the solution to the system of equations? <br> 5x-3y=-9 <br> 2x-5y=4<br><br> (___,___)
    5·1 answer
  • Gabriel is signing up for a gym membership with a one-time fee to join and then a
    8·1 answer
  • Skill Sum
    11·1 answer
  • If x is a positive integer for how many different values of x is 48/X whole number
    5·2 answers
  • Which statements are true? Check all that apply.
    6·1 answer
  • Sofia’s mother sent her to the grocery store with $10. If the sales tax rate that will apply at the time of her purchase is 6%,
    13·1 answer
  • Peyton needed to get her computer fixed. She took it to the repair store. The
    6·1 answer
  • . Two bicyclists, Sarah and Emily, depart from the same location. Sarah heads N55°E at an average speed of 6 km/hr. Emily heads
    9·1 answer
  • Tim has read ​10% of a book. He has 45 more pages to finish. How many pages are there in the​ book?
    8·1 answer
  • Part A
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!