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
saw5 [17]
2 years ago
7

Plz answer this quick!! 30 points and I’ll give brainliest. PLZ

Mathematics
1 answer:
Leona [35]2 years ago
6 0

The Answer Is A. or C.

You might be interested in
You are debating about whether to buy a new computer for $800.00 or a refurbished computer with the same equipment for $640.00.
liraira [26]

APR refers to annual interest rate i e 4.5%

Difference:-

  • 800-640
  • 160$

Now

Interest:-

  • 160(0.045)
  • 7.20$

Total savings:-

  • 160+7.20
  • 167.20$

Remember the code:-

  • Question's calculations mostly given in its options
4 0
2 years ago
Based on historical data in Oxnard college, we believe that 37% of freshmen do not visit their counselors regularly. For this ye
slega [8]

Answer:

A sample size of 1031 is required.

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence level of 1-\alpha, we have the following confidence interval of proportions.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which

z is the zscore that has a pvalue of 1 - \frac{\alpha}{2}.

The margin of error is of:

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

37% of freshmen do not visit their counselors regularly.

This means that \pi = 0.37

98% confidence level

So \alpha = 0.02, z is the value of Z that has a pvalue of 1 - \frac{0.02}{2} = 0.99, so Z = 2.327.

You would like to be 98% confident that your estimate is within 3.5% of the true population proportion. How large of a sample size is required?

A sample size of n is required.

n is found when M = 0.035. So

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

0.035 = 2.327\sqrt{\frac{0.37*0.63}{n}}

0.035\sqrt{n} = 2.327\sqrt{0.37*0.63}

\sqrt{n} = \frac{2.327\sqrt{0.37*0.63}}{0.035}

(\sqrt{n})^2 = (\frac{2.327\sqrt{0.37*0.63}}{0.035})^2

n = 1030.4

Rounding up:

A sample size of 1031 is required.

4 0
3 years ago
What is 42 x 3? (try to not use a calculator though) I don't actually need this to be solved but, I want to see if you guys can
laila [671]

Answer:

126

Step-by-step explanation:

42 times 3 = 126

6 0
3 years ago
Read 2 more answers
What is the meaning of Arch
frutty [35]
An Arch is a chief, or principle. 
4 0
3 years ago
Read 2 more answers
Solve 4(x - 3) - 2x - 1) > 0​
fgiga [73]

Answer:

x > 5.5

Step-by-step explanation:

4(x - 3) - (2x - 1) > 0

4x - 12 - 2x + 1 > 0

4x - 2x - 11 > 0

2x - 11 > 0

2x - 11 + 11 > 0 + 11

2x > 11

2x ÷ 2 > 11 ÷ 2

x > 5.5

6 0
3 years ago
Read 2 more answers
Other questions:
  • A(n) ________ requires member nations to harmonize their tax, monetary, and fiscal policies and create a common currency. common
    8·1 answer
  • A triangle shaped flag is shown 6 ft 4 ft enter the area of the flag in square feet ​
    13·2 answers
  • WILL GIVE BRAINLIEST!
    7·2 answers
  • Question 4 (10 points)
    14·1 answer
  • Simplify the expression by combining like
    11·1 answer
  • What problem would give you a sum of −4?
    14·1 answer
  • SOMEBODY HELP ME AS SOON AS POSSIBLE !!
    6·1 answer
  • The perimeter of an isocoles triangle is 24cm. What are the lengths of the sides of the triangle?
    13·1 answer
  • What is this answer? _x - 4 > -10
    8·1 answer
  • The avrge amount of rainfalls is?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!