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
skad [1K]
3 years ago
9

Megan reads 2 pages of a book each morning

Mathematics
1 answer:
Makovka662 [10]3 years ago
8 0
It’s A because 2+3=5 and 5x7=35
You might be interested in
What is the mean for the set of data?
Lady_Fox [76]

Answer:

the mean is 3

Pls mark Brainliest :)

Step-by-step explanation:

8 0
3 years ago
What is the value of x/3y , when x = 18 and y = 3? <br><br> 3/18 <br><br> 2 <br><br> 3 <br><br> 6
Anestetic [448]

x = 18

y = 3

x/3y becomes 18/3(3) = 18/9 = 2

4 0
3 years ago
Read 2 more answers
The scientist performs additional analyses and observes that the number of major earthquakes does appear to be decreasing but wo
kifflom [539]

Answer:

Step-by-step explanation:

Hello!

A regression model was determined in order to predict the number of earthquakes above magnitude 7.0 regarding the year.

^Y= 164.67 - 0.07Xi

Y: earthquake above magnitude 7.0

X: year

The researcher wants to test the claim that the regression is statistically significant, i.e. if the year is a good predictor of the number of earthquakes with magnitude above 7.0 If he is correct, you'd expect the slope to be different from zero: β ≠ 0, if the claim is not correct, then the slope will be equal to zero: β = 0

The hypotheses are:

H₀: β = 0

H₁: β ≠ 0

α: 0.05

The statistic for this test is a student's t: t= \frac{b - \beta }{Sb} ~~t_{n-2}

The calculated value is in the regression output t_{H_0}= -3.82

This test is two-tailed, meaning that the rejection region is divided in two and you'll reject the null hypothesis to small values of t or to high values of t, the p-value for this test will also be divided in two.

The p-value is the probability of obtaining a value as extreme as the one calculated under the null hypothesis:

p-value: P(t_{n-2}\leq -3.82) + P(t_{n-2}\geq  3.82)

As you can see to calculate it you need the information of the sample size to determine the degrees of freedom of the distribution.

If you want to use the rejection region approach, the sample size is also needed to determine the critical values.

But since this test is two tailed at α: 0.05 and there was a confidence interval with confidence level 0.95 (which is complementary to the level of significance) you can use it to decide whether to reject the null hypothesis.

Using the CI, the decision rule is as follows:

If the CI includes the "zero", do not reject the null hypothesis.

If the CI doesn't include the "zero", reject the null hypothesis.

The calculated interval for the slope is: [-0.11; -0.04]

As you can see, both limits of the interval are negative and do not include the zero, so the decision is to reject the null hypothesis.

At a 5% significance level, you can conclude that the relationship between the year and the number of earthquakes above magnitude 7.0 is statistically significant.

I hope this helps!

(full output in attachment)

5 0
3 years ago
Marcus gardens. He pulls weeds for 18 minutes, Waters for 13 minutes, andplants for 16 minutes how many total minutes does he sp
Virty [35]

47 minutes gardening

7 0
3 years ago
Read 2 more answers
hELP!!! PLEASE?! BRAINLIEST ANSWER INCLUDED!!! A cashier has a total of 98 bills, made up of fives and fifties. The total value
bulgar [2K]
You would need 48 fifty dollar bills to make up 2,400 and you would need 5 five dollar bills to make up the 25, so then you’d have your answer which is $2,425.
3 0
3 years ago
Other questions:
  • Between which pair of numbers is the exact product of 379 and 8
    15·2 answers
  • What is the answer to question 3 and 4
    14·1 answer
  • Solve the equation I= prt for t <br><br> A- t= ipr<br> B- t=I/pr<br> C- t= pr/I
    7·1 answer
  • A study found that the average stopping distance of a school bus traveling 50 mph was 264 feet. a group of automotive engineers
    13·1 answer
  • ANSWERRRR IF UR COOL!! Plssss ILL MARK BRAINLEST Ty!!! So much ilyyyyyyy
    6·2 answers
  • Which correctly describes a cross section of the square pyramid? Select three options. A square pyramid with 2 foot sides. A cro
    15·2 answers
  • Missing angles
    11·1 answer
  • Could you please help me. what is -3 -8
    7·2 answers
  • Please help this was due yesterday and in less than an hour it won't be worth any points
    14·2 answers
  • What is the value of the expression below? (8^2/3)^1/2<br> A. 4<br> B. 1<br> C.2<br> D.8
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!