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
azamat
3 years ago
7

18. Noah paid off a loan with a simple interest rate of

Mathematics
1 answer:
Elena L [17]3 years ago
7 0

Answer:

29.1% is the correct APR

Step-by-step explanation:

Annual percentage rate=(interest+fees)/principal amount/n*365 days

interest is 9.7%

fees is not applicable to this question

principal is 100%

n is the number of days the loan was taken out for which is 4 months and the 365 days would be represented by 12 months instead.

annual percentage rate(APR)=(9.7%/100%/4)*12=29.1%

The correct option is 29.1% which represents the annual rate of interest on the loan taken by Noah on yearly basis

You might be interested in
Solve the inequality.
Vika [28.1K]

Answer:

Option C is correct

Step-by-step explanation:

      5c – 20 ≤ 15c + 10

<=> 5c - 15c ≤ 20 + 10

<=>-10c ≤ 30

<=> c ≥ -3

Hope this helps!

6 0
3 years ago
Read 2 more answers
Researchers at the National Cancer Institute released the results of a study that investigated the effect of weed-killing herbic
jolli1 [7]

Answer:

The 95% confidence interval for the difference in the proportion of cancer diagnoses between the two groups is (0.3834, 0.5166).

Step-by-step explanation:

Before building the confidence interval, we need to understand the central limit theorem and subtraction between normal variables.

Central Limit Theorem

The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean \mu and standard deviation \sigma, the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean \mu and standard deviation s = \frac{\sigma}{\sqrt{n}}.

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

For a proportion p in a sample of size n, the sampling distribution of the sample proportion will be approximately normal with mean \mu = p and standard deviation s = \sqrt{\frac{p(1-p)}{n}}

Subtraction between normal variables:

When two normal variables are subtracted, the mean is the difference of the means, while the standard deviation is the square root of the sum of the variances.

The randomly sampled 400 dogs from homes where an herbicide was used on a regular basis, diagnosing lymphoma in 230 of them.

This means that:

p_h = \frac{230}{400} = 0.575, s_h = \sqrt{\frac{0.575*0.425}{400}} = 0.0247

Of 200 dogs randomly sampled from homes where no herbicides were used, only 25 were found to have lymphoma.

This means that:

p_n = \frac{25}{200} = 0.125, s_n = \sqrt{\frac{0.125*0.875}{200}} = 0.0234

Distribution of the difference:

p = p_h - p_n = 0.575 - 0.125 = 0.45

s = \sqrt{s_h^2+s_n^2} = \sqrt{0.0247^2 + 0.0234^2} = 0.034

Confidence interval:

The confidence interval is:

p \pm zs

In which

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

95% confidence level

So \alpha = 0.05, z is the value of Z that has a pvalue of 1 - \frac{0.05}{2} = 0.975, so Z = 1.96.

The lower bound is 0.45 - 1.96(0.034) = 0.3834

The upper bound is 0.45 + 1.96(0.034) = 0.5166

The 95% confidence interval for the difference in the proportion of cancer diagnoses between the two groups is (0.3834, 0.5166).

3 0
3 years ago
Danny charges $40 for 4 hours of swimming lessons, Martin charges $85 for 5 hours of swimming lessons. Who offers a better deal?
Ratling [72]

Answer:

Danny does

Step-by-step explanation: 40 / 4 = 10

                                              85 / 5 = 17

10 is less than 17 meaning that Danny is offering a better deal.

Hope this helps!

4 0
3 years ago
Read 2 more answers
13. Find the range of the function on the graph<br> below.
aliina [53]

Range is ] -20 , -10 [

both points are disclude according to the empty circle

4 0
2 years ago
Name the property of operation illustrates by each statement.11.1+0=11.1​
Rina8888 [55]

Answer: Associative property of addition

I hope this helps :D

6 0
3 years ago
Other questions:
  • 87 less than the quotient of an unknown number and 43 is -75
    10·2 answers
  • Find the area of the shaded region in square units ​
    13·1 answer
  • Expression equivalent to -2.5(4x-3)
    13·1 answer
  • What is the answer to <br> -8(-10-4n)-10(n-6)
    13·1 answer
  • Which of the follwing is not a pythagorean triple 10,16 19<br>8,15,17<br>16,63,65<br>11,60,61​
    11·1 answer
  • (110×110×110×110)2=?
    11·1 answer
  • HELP PLS ASAP I HAVE 6 MINUTES NO LINKS
    7·1 answer
  • Eddie needs to paint a fence which has 10,000 square feet of surface. One gallon of paint covers 600 square feet.
    13·1 answer
  • Francis heard that a care stereo system was on sale for 30% off. If the sale price was $57.75, what was the original price of th
    7·1 answer
  • 3 time the sum of a number and 5 ​
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!