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
spayn [35]
3 years ago
6

Simplify to find the equivalent expression help plzzz

Mathematics
2 answers:
Yuki888 [10]3 years ago
8 0

Answer:

-16n - 41

Step-by-step explanation:

  1. You do 2 X - n which is - 2n
  2. Then do 2 X - 3 which is - 6
  3. Then - 7 X 5 which is - 35
  4. Then - 7 X 2n which is - 14n
  5. You get - 2n - 6 - 35 - 14n
  6. Simplify and you get - 16n - 41
inn [45]3 years ago
5 0

Answer: The answer should be B, -16n - 41

You might be interested in
Most dermatologists recommend using sunscreens that have a Sun Protection Factor (SPF) of at least 30. One of the authors wanted
Basile [38]

Answer:  We are 95% confident that the mean SPF level of sunscreen used by all Cal Poly students is between 29.0813 and 40.0187.

Step-by-step explanation:

Given : Significance level : \alpha: 1-0.95=0.05

Sample size : n= 52 , which is a large sample (n>30), so we use z-test.

By using z-value table,

Critical value: z_{\alpha/2}=1.96

Sample mean : \overline{x}= 34.55

Standard deviation : \sigma= 20.12

The confidence interval for population means is given by :-

\overline{x}\pm z_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}

i.e. 34.55\pm(1.96)\dfrac{ 20.12}{\sqrt{52}}

=34.55\pm5.46867829455\\\\\approx34.55\pm5.4687\\\\=(34.55-5.4687, 34.55+5.4687)=(29.0813,\ 40.0187)

Now, the 95% confidence interval for the ppopulation mean = . (29.0813, 40.0187)

Hence, We are 95% confident that the mean SPF level of sunscreen used by all Cal Poly students is between 29.0813 and 40.0187.

7 0
3 years ago
A student received an 82% on an exam. If there were 50 questions on the exam, which ratio would show the number of questions ans
solmaris [256]
Hello!

To solve this we have to find what 82% of 50 is

So we do 50 * 0.82 where 0.82 is 82% as a decimal.

This gives us 41

So the answer is D

Hope this helps!
8 0
3 years ago
Read 2 more answers
What’s 12 1/6 converted into a decimal
My name is Ann [436]

Answer:

12.167

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
HELP YA GIRL PLZZZZ I WILL REWARD
Pie
The answer is true as the y value of y=sin
5 0
3 years ago
Which problem is equivalent to 12/18
Olenka [21]

Answer:

B

Step-by-step explanation:

5 0
3 years ago
Other questions:
  • There are 4 elephants in the preserve. Each elephant eats 2 1/4tons of vegetation in a week.
    6·2 answers
  • I need help wiith all❤️It’s urgent please
    9·1 answer
  • 10[4 times 10 divided by9(6 two to the second power-4 to the second power)+1}
    7·1 answer
  • What percent of 120 is 78?
    7·2 answers
  • How do you find the surface area and volume of this?
    14·1 answer
  • The perimeter of a regular hexagon (All sides are equal) is 24x +48. Write an expression to represent the length of one side.
    15·1 answer
  • Instructions: Perform the given operation for the two stated functions. Type your answer in the space given. Remember to use the
    9·1 answer
  • There are three square gardens whose lengths of the sides are 3 ft, 7ft, and 2 ft respectively. Find the total area of the three
    5·1 answer
  • Sylvia is hiking from Mineral Creek to Blueberry Hilla distance points of 6 1/5 miles. After hiking 2 2/3 miles , Sylvia stops f
    14·1 answer
  • Simplify 1/x-10 / 9x/x2-9x-10
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!