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
blagie [28]
2 years ago
7

Simplify and express the answer as a decimal. 3(2.7+5)−2 Enter your answer in the box.

Mathematics
1 answer:
Volgvan2 years ago
5 0
First, add 2.7 and 5 to get 7.7. Then, multiply 7.7 and 3 to get 23.1. Finally, subtract 2 from 23.1.

If you're distributing, then multiply 3 by 2.7 and 5. Then, add and subtract the sum by 2.

Hope this helped!
You might be interested in
Find that sale price: jeans $85.99 at a 15% discount
arlik [135]

The sale price of the jeans would be $73.09

5 0
3 years ago
Which number is located at Point A on the number line?<br> –4 my answer<br> 4<br> –6<br> 6
OLEGan [10]

Answer:

-6

Step-by-step explanation:

you have to look at the numbers next to it

7 0
3 years ago
(English to algebra) twice the difference of w less than five
denpristay [2]

i believe its 2(5-w)

5 0
2 years ago
Read 2 more answers
An educational psychologist wishes to know the mean number of words a third grader can read per minute. She wants to make an est
nirvana33 [79]

Answer:

The 80% confidence interval for the mean number of words a third grader can read per minute is between 40.4 wpm and 40.8 wpm.

Step-by-step explanation:

We have that to find our \alpha level, that is the subtraction of 1 by the confidence interval divided by 2. So:

\alpha = \frac{1-0.8}{2} = 0.1

Now, we have to find z in the Ztable as such z has a pvalue of 1-\alpha.

So it is z with a pvalue of 1-0.1 = 0.99, so z = 1.28

Now, find M as such

M = z*\frac{\sigma}{\sqrt{n}}

In which \sigma is the standard deviation of the population and n is the size of the sample.

M = 1.28*\frac{4.1}{\sqrt{840}} = 0.2

The lower end of the interval is the sample mean subtracted by M. So it is 40.6 - 0.2 = 40.4 words per minute.

The upper end of the interval is the sample mean added to M. So it is 40.6 + 0.2 = 40.8 words per minute.

The 80% confidence interval for the mean number of words a third grader can read per minute is between 40.4 wpm and 40.8 wpm.

3 0
3 years ago
F(x)=-x^2+6x+4<br><br>f(x)=−x <br><br>2<br><br> +6x+4
snow_lady [41]

Answer:

x = 3 - 2 (3)

Step-by-step explanation:

.

8 0
2 years ago
Other questions:
  • How many envelopes are there in 7 packages
    14·1 answer
  • What value should be added to the expression to create a perfect square?
    10·2 answers
  • 224% of 320 equal what
    7·1 answer
  • Help!!!! <br> What is f(-5) if f(x) = |2x – 1] + 10?
    11·1 answer
  • Help answer question 3
    6·1 answer
  • ( 3.6 +0.4 ) + 0.25 =
    15·1 answer
  • Explain how the following diagram demonstrates the pythagorean theorem?
    6·2 answers
  • Does anybody know how to solve or what the answer is?
    12·1 answer
  • Enter the unknown number that makes the equation true. 75 + 3 x ☐ = 372
    11·2 answers
  • S
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!