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
raketka [301]
3 years ago
10

Help with answering this line graph

Mathematics
2 answers:
Masteriza [31]3 years ago
5 0
I can only see half of the pic
Law Incorporation [45]3 years ago
4 0
Only shows half of the picture whats the question/?

You might be interested in
[TIMED I NEED HELP]
marta [7]
ITS C - Factor 6 out of the variable terms

3 0
2 years ago
Read 2 more answers
How can you tell when a pattern shows counting by tens ?
mestny [16]
They end in 0? i think

4 0
3 years ago
Read 2 more answers
Can someone help me learn linear equations​
Bezzdna [24]

Answer:

Linear equations that go in a straight line.

They are linear so they don’t curve like parabolas.

Step-by-step explanation:

See this picture. It will definitely help you!

6 0
3 years ago
A laptop producing company also produces laptop batteries, and claims that the batteries
gregori [183]

Answer:

There is enough evidence to support the claim that the batteries power the laptops for significantly less than 4 hours. (P-value = 0).

The null and alternative hypothesis are:

H_0: \mu=4\\\\H_a:\mu< 4

Step-by-step explanation:

<em>The question is incomplete: To test this claim a sample or population standard deviation is needed.</em>

<em>We will estimate that the sample standard deviation is 2 hours, and use a t-test to test that claim.</em>

<em> NOTE (after solving): The difference between the sample mean and the mean of the null hypothesis is big enough to reject the null hypothesis, even when we have a sample standard deviation of 3.5 hours, which can be considered bigger than the maximum standard deviation for the sample.</em>

This is a hypothesis test for the population mean.

The claim is that the batteries power the laptops for significantly less than 4 hours.

Then, the null and alternative hypothesis are:

H_0: \mu=4\\\\H_a:\mu< 4

The significance level is 0.05.

The sample has a size n=500.

The sample mean is M=3.5.

As the standard deviation of the population is not known, we estimate it with the sample standard deviation, that has a value of s=2.

The estimated standard error of the mean is computed using the formula:

s_M=\dfrac{s}{\sqrt{n}}=\dfrac{2}{\sqrt{500}}=0.0894

Then, we can calculate the t-statistic as:

t=\dfrac{M-\mu}{s/\sqrt{n}}=\dfrac{3.5-4}{0.0894}=\dfrac{-0.5}{0.0894}=-5.5902

The degrees of freedom for this sample size are:

df=n-1=500-1=499

This test is a left-tailed test, with 499 degrees of freedom and t=-5.5902, so the P-value for this test is calculated as (using a t-table):

P-value=P(t

As the P-value (0) is smaller than the significance level (0.05), the effect is  significant.

The null hypothesis is rejected.

There is enough evidence to support the claim that the batteries power the laptops for significantly less than 4 hours.

5 0
3 years ago
Find Z.............​
Arada [10]

Answer:

x = 40 degrees

Step-by-step explanation:

We are given that AB and CD are parallel to each other and they are cut by a transversal.

The angle 40 is complementary to angle z, so this means that they have the same measure by the complementary angles theorem.

Complementary are angles that occupy the same space on one parallel line compared to the other parallel line.

Angle z = 40 degrees

5 0
3 years ago
Other questions:
  • I dont know why my geometry teacher is giving us trigonometry​
    15·2 answers
  • given the trinomial x^2+bx-c where both the first sign is positive and the second sign is negative, the signs of the factors wil
    12·2 answers
  • What is the LCM of 12, 25, and 36?
    7·2 answers
  • What are the two things a fraction compare
    13·1 answer
  • One cubic millimeter of Mrs. Murphy's blood contains about 5,000,000 red blood cells. There are about 4,900,000 cubic millimeter
    12·1 answer
  • There is a line that includes the point (7,10) and has a slope of 5. What is its equation in point-slope form?
    6·1 answer
  • 78% of 50 is what number
    12·2 answers
  • What is 24 - 29 as a percent change
    6·1 answer
  • What is the perimeter of the top of the tower
    13·1 answer
  • Nora is decorating the outside of a box in the shape of a cube. The figure below shows a net for the box (Please Help)
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!