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
vova2212 [387]
3 years ago
13

What is the answer to Sarah and four friends are decorating picture frames with ribbon. They have 4 rolls of ribbon to share eve

nly
Mathematics
2 answers:
svet-max [94.6K]3 years ago
7 0
I suppose you would divide 5 divided by 4. When I tried that, I got 0.8. You may want to check if that will fit into the problem, because I'm not sure.
liraira [26]3 years ago
6 0
The answer is 8/10 but simplified it is 4/5.
You might be interested in
Which is the graph of the function f(x) = x3 + x2 + 4?
Stolb23 [73]
X=- 4/5
X=-0.8
That’s the answer to your problem to your question
7 0
3 years ago
David wants to complete a hypothesis test with the least amount of probability for error. If he sets the significance level to 1
Brrunno [24]

Answer:

He could increase the sample size

Step-by-step explanation:

In hypothesis testing, the error associated with the test is affected by a number of factors. The first factor is the level of significance, alpha. This is the probability of type 1 error. The probability of rejecting the null hypothesis when it is indeed true.

The second factor is the size of the sample used. The larger the sample, the smaller the error since the characteristics of the sample will be closer to those of the entire population on which inference is being made

8 0
3 years ago
Read 2 more answers
I need help with this question. Can you please help me. I’ll give you 18 points if it’s correct
lukranit [14]

Answer:

34.4

Step-by-step explanation:

Using Triangle Sum Theory, you see that the triangles are similar. They have the same angle measurements. That means their corresponding sides are proportional.

\frac{MN}{NO} = \frac{PQ}{QR}

\frac{14}{11} = \frac{PQ}{27}

Cross multiply

14(27) = 11(PQ)

378 = 11(PQ)

\frac{378}{11} = PQ

PQ = 34.4

7 0
3 years ago
Consider independent simple random samples that are taken to test the difference between the means of two populations. The varia
Arturiano [62]

Answer:

d. t distribution with df = 80

Step-by-step explanation:

Assuming this problem:

Consider independent simple random samples that are taken to test the difference between the means of two populations. The variances of the populations are unknown, but are assumed to be equal. The sample sizes of each population are n1 = 37 and n2 = 45. The appropriate distribution to use is the:

a. t distribution with df = 82.

b. t distribution with df = 81.

c. t distribution with df = 41.

d. t distribution with df = 80

Solution to the problem

When we have two independent samples from two normal distributions with equal variances we are assuming that  

\sigma^2_1 =\sigma^2_2 =\sigma^2

And the statistic is given by this formula:

t=\frac{(\bar X_1 -\bar X_2)-(\mu_{1}-\mu_2)}{S_p\sqrt{\frac{1}{n_1}+\frac{1}{n_2}}}

Where t follows a t distribution with n_1+n_2 -2 degrees of freedom and the pooled variance S^2_p is given by this formula:

\S^2_p =\frac{(n_1-1)S^2_1 +(n_2 -1)S^2_2}{n_1 +n_2 -2}

This last one is an unbiased estimator of the common variance \sigma^2

So on this case the degrees of freedom are given by:

df= 37+45-2=80

And the best answer is:

d. t distribution with df = 80

5 0
3 years ago
Income Taxes: Mastery Test
Margarita [4]

Answer:

1. tax deductions 2. the one that isn't amount of tax owed

Step-by-step explanation:

got the first part right and reviewed it on plato to see that The amount of tax owed is not the right answer.

4 0
2 years ago
Other questions:
  • Which polynomial is twice the sum of 4x^2-x+1 and -6x^2+x-4
    6·1 answer
  • Find the midpoint M of the line segment joining thee Point S =(6,-7) and I =(-8,3)​
    14·1 answer
  • Help fast plzzzzzzz :3
    8·1 answer
  • Can someone explain?
    15·1 answer
  • A car depreciates 5% every year. What is the multiplier?
    9·2 answers
  • Whats the answer for 16 - 2n = -8 + 4(n - 3) pls
    6·1 answer
  • What is the slope and y-intercept of the equation: y = -2/3x + 5
    14·1 answer
  • Express 8mm as a percentage of 4mm​
    15·2 answers
  • Help me pleaseeeeeeeee​
    15·2 answers
  • Help me please i need help im terable at math
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!