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
ValentinkaMS [17]
3 years ago
8

Giving points and brainliest if you help me answer this question correctly!!!

Mathematics
1 answer:
Wewaii [24]3 years ago
3 0

Answer:

A

Step-by-step explanation: hope this helps!!

You might be interested in
25. If the scale factor of two similar solids is 3:16, what is the ratio of their corresponding areas and volumes? (1 point) 3:2
vitfil [10]
I'm not sure about #25 but #26 is C. 144
3 0
3 years ago
Read 2 more answers
Antonina needs to have worked at least 909090 volunteer hours to graduate. She has already volunteered with a housing organizati
Veseljchak [2.6K]
An inequality can be formed by simply translating the problem statement to numerical expressions.

From the problem we know that 3w added with 52 hours should be equal or greater than 90 (helpful insight from the keyword "at least"). Therefore, it's inequality would look like:

3w+52>=90 (>= is used instead of ≥ for constraints in formatting)

The inequality above best models the situation.
8 0
3 years ago
Read 2 more answers
I need help please help me
Leviafan [203]
Is that the Algebra work/practice book? If so, go into algebra nation and they have videos where they go step by step through the questions. Hope this helps?
5 0
2 years ago
A professor wishes to discover if seniors skip more classes than freshmen. Suppose he knows that freshmen skip 2% of their class
KIM [24]

Answer:

We conclude that seniors skip more than 2% of their classes at 0.01 level of significance.

Step-by-step explanation:

We are given that a professor wishes to discover if seniors skip more classes than freshmen. Suppose he knows that freshmen skip 2% of their classes.

He randomly samples a group of seniors and out of 2521 classes, the group skipped 77.

<u><em /></u>

<u><em>Let p = percentage of seniors who skip their classes.</em></u>

So, Null Hypothesis, H_0 : p \leq 2%   {means that seniors skip less than or equal to 2% of their classes}

Alternate Hypothesis, H_A : p > 2%   {means that seniors skip more than 2% of their classes}

The test statistics that will be used here is <u>One-sample z proportion</u> <u>statistics</u>;

                                   T.S.  = \frac{\hat p-p}{{\sqrt{\frac{\hat p(1-\hat p)}{n} } } } }  ~ N(0,1)

where, \hat p = sample proportion of seniors who skipped their classes = \frac{77}{2521}

           n = sample of classes = 2521

So, <u><em>test statistics</em></u>  =  \frac{\frac{77}{2521} -0.02}{{\sqrt{\frac{\frac{77}{2521}(1-\frac{77}{2521})}{2521} } } } }

                               =  3.08

The value of the test statistics is 3.08.

Now at 0.01 significance level, <u>the z table gives critical value of 2.3263 for right-tailed test</u>. Since our test statistics is more than the critical value of z as 2.3263 < 3.08, so we have sufficient evidence to reject our null hypothesis as it will fall in the rejection region due to which <u>we reject our null hypothesis</u>.

Therefore, we conclude that seniors skip more than 2% of their classes.

6 0
3 years ago
Enter the value that makes the given equation true. Y+396.23 =574.54
Levart [38]
574.54-396.23= 178.31
So Y=178.31
8 0
2 years ago
Other questions:
  • Why does the liquid in a thermometer rise on warm days and drop on cold days
    12·1 answer
  • Simplify 81 ^3/4 using a calculator.
    13·1 answer
  • Please help me with this
    7·1 answer
  • 7x-4=24 I need step by step
    6·2 answers
  • CAN SOMEONE PLEASE HELP ME!!! <br><br> !!!
    7·2 answers
  • The functions (x) and g(x) are defined below.
    15·1 answer
  • It took 48 minutes to drive downtown. An app estimated it would be less than that. If the error was 20%, what was the app’s esti
    14·2 answers
  • Given the line y=5, write the equation of the line
    9·1 answer
  • 493,295. <br><br> And the first nine is the number of rounding
    15·2 answers
  • Is this correct??????
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!