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
kykrilka [37]
3 years ago
10

Which expression is equivalent to 3(x - 1) – 5(x + 2) ?

Mathematics
1 answer:
kykrilka [37]3 years ago
7 0
Answer is C. -2x - 13
You might be interested in
What is this answer?
shusha [124]

Answer:

a

Step-by-step explanation:

Because I did this already

4 0
3 years ago
Read 2 more answers
I need help please.
exis [7]
Pretty sure the answer is 20
Hope this helps :)
3 0
3 years ago
Read 2 more answers
A 300-page book is 10 inches long, 8 inches wide, and 3 4 inches tall. What is the volume of 100 pages of the book?
katen-ka-za [31]

Answer:

20 in³

Step-by-step explanation:

Volume of 300 pages:

10 × 8 × 3/4

When the no. of pages change, only the thickness of the book changes:

Volume = 10 × 8 × ¼

= 20 in³

5 0
3 years ago
Read 2 more answers
1. The data given below includes data from 42 ​candies, and 7 of them are red. The company that makes the candy claims that 33​%
jeyben [28]

Answer:

The 95% confidence interval for true proportion of red candies is (5%, 27%).

The true proportion of red candies made by the company is different from 33%.

Step-by-step explanation:

The hypothesis to determine whether the claim made by the candy company is correct or not is:

<em>H</em>₀: The true proportion of red candies made by the company is 33%, i.e. <em>p</em> = 0.33.

<em>Hₐ</em>: The true proportion of red candies made by the company is different from 33%, i.e. <em>p</em> ≠ 0.33.

A (1 - <em>α</em>)% confidence interval can be constructed to check this claim.

The decision rule is:

If the confidence interval consists the null value then the null hypothesis will not be rejected. Otherwise it will be rejected.

The (1 - <em>α</em>)% confidence interval for population proportion is:

CI=\hat p\pm z_{\alpha/2}\sqrt{\frac{\hat p(1-\hat p)}{n}}

The information provided is:

<em>n</em> = 42

<em>X</em> = number of red candies = 7

Compute the sample proportion of candies that are red as follows:

\hat p=\frac{X}{n}=\frac{7}{42}=0.167

The critical value of <em>z</em> for 95% confidence level is:

z_{\alpha/2}=z_{0.05/2}=z_{0.025}=1.96

*Use a <em>z</em>-table for the critical value.

Compute the 95% confidence interval for true proportion of red candies as follows:

CI=\hat p\pm z_{\alpha/2}\sqrt{\frac{\hat p(1-\hat p)}{n}}\\=0.167\pm 1.96\times \sqrt{\frac{0.167(1-0.167)}{42}}\\=0.16\pm0.1137\\=(0.0463, 0.2737)\\\approx(0.05, 0.27)

The 95% confidence interval for true proportion of red candies is (5%, 27%).

The confidence interval does not contains the null value.

Thus, the null hypothesis will be rejected at 5% level of significance.

Conclusion:

The true proportion of red candies made by the company is different from 33%.

7 0
3 years ago
Which value, in order, will complete the table? ​
tia_tia [17]
Answer: The answer is the first choice.

Explanation:

Because you must find the sin of the x values in the table.

Sin(7pi/6) = -1/2

Sin(5pi/4) = -sqrt 2/2

Sin(4pi/3) = -sqrt 3/2
4 0
3 years ago
Other questions:
  • This go along with the problems... I need help bad
    10·1 answer
  • <img src="https://tex.z-dn.net/?f=f%28x%29%20%3D%20%20%7B2%7Dx%5E%7B2%7D%20%20%2B%204x%20-%207" id="TexFormula1" title="f(x) =
    15·1 answer
  • What set of numbers does -10 belong to
    9·1 answer
  • A group of ten persons were planning to contribute equal amounts of money to but some pizza. After the pizza was ordered, one pe
    8·1 answer
  • A square field has an area 121 square meters.What is the perimeter of the field?
    15·2 answers
  • I need help with my statistics class. I am doing a 6 step hypothesis and i am stuck on the alternate and null hypothesis. I am d
    9·1 answer
  • The roof has a vertical height of 8 feet. The house has a width of 20
    15·2 answers
  • Consider the function that assigns to each positive number x the value
    7·2 answers
  • Solve for t.<br> 3t- 2 = -11<br> A. -12<br> B. -11<br> C. -9<br> D.-3
    15·1 answer
  • What is the y- intercept of this quadratic funtions f(x)=-x2+10x-22
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!