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
ioda
3 years ago
12

Plz help me with this question

Mathematics
1 answer:
Monica [59]3 years ago
7 0

Answer:B

Step-by-step explanation:

You might be interested in
What is the first day of spring
nasty-shy [4]

Answer:

The first day of spring is  Thursday, March 19th.

The first day of summer is June 20th. So, Spring ends on June 20th.

Step-by-step explanation:

<em>I looked it up on the internet instead of asking on brainly.</em>

8 0
3 years ago
Read 2 more answers
. Compute the required sample size given the required confidence in the sample results is 99.74% (Z score of 3). The level of al
Shtirlitz [24]

Answer:

900 sample size

Step-by-step explanation:

To determine the sample size for a proportion, the margin of error formula is used to determine this:

E=Z_{\frac{\alpha}{2} }*\sqrt{\frac{\hat p \hat q}{{n} }

n=\hat p \hat q*(\frac{Z_{\frac{\alpha}{2} }}{E} )^2

Where p is the proportion, E is the margin of error, n is the sample size, q = 1 - p, Z_\frac{\alpha }{2} is the z score.

Since the proportion is not known, the sample size needed to guarantee the confidence interval and error is at p = 0.5 and q = 1 - p = 1 - 0.5 = 0.5

E = 5% = 0.05, Z_\frac{\alpha }{2} = 3. Hence:

n=0.5*0.5*(\frac{3}{0.05} )^2\\\\n = 900

6 0
3 years ago
My number had a tens digit that is 8 more than the ones digit. Zero is not one of my digits
marin [14]

The tens digit is 8 more than the ones digit. There isn't any zeros.

The maximum digit is 9 because 10 would be 2 digits, 1 and 0.

So say the tens digits is 9.

9 _

The ones digit is 8 less so 9-8 = 1

9 1

There isn't any zeros which is correct.

The answer is 91.  

4 0
2 years ago
Whats the answer for (5x + 8)(4x² + 6x - 8)
mestny [16]
(5x + 8)(4x^2 + 6x - 8)\\ \\ 5x(4x^2 + 6x - 8) + 8(4x^2 + 6x - 8) \\ \\ 20x^3 + 30x^2 - 40x + 8(4x^2 + 6x - 8) \\ \\ 20x^3 + 30x^2 - 40x + 32x^2 + 48x - 64 \\ \\ 20x^3 + (30x^2 + 32x^2) + (-40x + 48x) - 64 \\ \\ 20x^3 + 62x^2 + 8x - 64 \\ \\

The final result is: 20x^3 + 62x^2 + 8x - 64.
4 0
3 years ago
I really need help! ANYONEEEEE
antiseptic1488 [7]

Answer:

I think Its 47? if Im wrong Im very sorry.

Step-by-step explanation:

I added all of the numbers, and the sides without numbers, its simple just add all of the numbers together, I think

5 0
2 years ago
Other questions:
  • What is the surface area of the solid that this net can form?
    11·2 answers
  • How do you solve, 5 ^3x-4/25=625​
    6·1 answer
  • Help please, i really need it<br>​
    9·1 answer
  • s the line for the equation y = −8 horizontal or vertical? What is the slope of this line? Select the best answer.
    5·1 answer
  • death valey CA is 282 feet below sea levle. black mountain, KYis 750 feet above sea levle how many feet is black mountain from d
    8·1 answer
  • 15 different tasks are assigned to 8 different people. There are no restrictions on the number of tasks that can be given to any
    7·1 answer
  • How can you find the whole in a percent problem?
    6·1 answer
  • Match each equivalent expression with the property that it represents.
    10·1 answer
  • I need help with this asap!
    12·2 answers
  • Solve: 2 In 3 = In(x-4)
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!