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
tankabanditka [31]
3 years ago
5

Write an expression equivalent to 5x−2(x+4), in simplest form

Mathematics
2 answers:
Snowcat [4.5K]3 years ago
5 0

Answer:

3x-8

Step-by-step explanation:

I searched the answer on a expression calculator. I hope this helps you

Gemiola [76]3 years ago
3 0

Answer:

3x-8

Have A Good Day!!!!

:)

You might be interested in
Use distributive property to write an equivalent expression 6(g+h)
Nimfa-mama [501]

Answer:

6g+6h

Step-by-step explanation:

Hi there!

Well distributive property is basically just multiplying out the parenthesis.

6(g)+6(h)

6g+6h

Hope this helped! Have a great day! ^u^

8 0
3 years ago
A study was conducted to investigate the effectiveness of hypnotism in reducing pain. An SRS of 8 subjects was randomly selected
chubhunter [2.5K]

Answer:

e. No, the p-value is greater than 0.01, so there is insufficient evidence at the 0.01 level to conclude that pain levels are lower after hypnotism.

Step-by-step explanation:

Hello!

The study's objective is to test if hypnotism reduces pain.

A sample of n=8 subjects was taken and the pain level was recorded in each subject before and after being hypnotized.

The variable of interest was determined by calculating the difference of pain level after - before hypnosis. This is a paired sample test and the variable can be determined as:

Xd: Difference between pain level felt after hypnosis and pain level felt before hypnosis of a subject.

The sample average and standard deviation obtained were:

Xd= -3

Sd= 3

And the variable is presumed to be approximately normal.

An approximately normal distribution is enough to conduct a paired sample t-test.

If the claim is that hypnosis reduces pain, then the average pain level after hypnosis should be less than the average pain level before hypnosis, then the average difference is expected to be negative, symbolically: μd < 0

The test will be one-tailed and so will be the p-value.

Remember: The p-value is defined as the probability corresponding to the calculated statistic if possible under the null hypothesis (i.e. the probability of obtaining a value as extreme as the value of the statistic under the null hypothesis).

So first step is to calculate the value of the statistic under the null hypothesis and then you can calculate the p-value.

H₀: μd ≥ 0

H₁: μd < 0

t_{H_0}= \frac{X_d-Mu_{d}}{\frac{S_d}{n} }= \frac{-0-0}{\frac{3}{\sqrt{8} } } = -2.828= -2.83

The DF of the t-test are n-1= 7

Then you can calculate the p-value as:

P(t₇≤-2.83)= 0.0127

The level of the test is α: 0.01

The decision rule is:

If p-value ≤ α, reject the null hypothesis.

If p-value > α, do not reject the null hypothesis.

The p-value > α the decision is to not reject the null hypothesis.

Correct option: e. No, the p-value is greater than 0.01, so there is insufficient evidence at the 0.01 level to conclude that pain levels are lower after hypnotism.

I hope this helps!

5 0
3 years ago
Find f'(0.3) for f(x)= the integral from 0 to x of arccos(t)dt
Lady_Fox [76]
\bf \textit{using the 2nd fundamental theorem of calculus}\\\\&#10;\cfrac{dy}{dx}\displaystyle \left[ \int\limits_{0}^{x}\ cos^{-1}(t)dt \right]\implies cos^{-1}(x)&#10;\\\\\\&#10;f'(0.3)\iff cos^{-1}(0.3)\approx 1.26610367277949911126

now.. 0.3 is just a value...we'e assuming Radians for the inverse cosine, so, if you check, make sure your calculator is in Radian mode
8 0
3 years ago
Two quantities are related, as shown in the table:
kompoz [17]

is Y= 3 over 2 x because y add 3 and x add 2

3 0
3 years ago
Division and the distributive property for 54÷3
denis23 [38]
The answer for this question is 18
4 0
3 years ago
Other questions:
  • Write and solve a real-world problem that can be modeled by the equation 0.75x-18.50=0.65x Finding X the variable
    10·2 answers
  • What number is half-way between 14 and 42?
    9·2 answers
  • I need your help please
    9·2 answers
  • Is this correct if not help me
    5·1 answer
  • Given the following right triangle, what is the measure of angle A?
    15·1 answer
  • a pile of 12 books is 1.2 meter thick 9 of them are 9.5 centimeters thick each and the rest are of equal thickness. for the rest
    15·1 answer
  • Simplify the expression. 19m – 4m2 + 4m2
    5·1 answer
  • Five numbers has a mean of 12. When one (1) number is removed the mean is 11. What is the value of the number removed?
    5·1 answer
  • Carl wants to plant a garden that is 1 1/2 yards long and has an area of 3 1/2 yd.² how wide should the Garden be
    11·1 answer
  • Can u pretty please help me it’s late I’m really struggling
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!