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
bezimeni [28]
2 years ago
10

What is the simplified value of the exponential expression 161/4

Mathematics
2 answers:
mart [117]2 years ago
8 0
The answer is 40 1/4
just olya [345]2 years ago
3 0

Answer:

40 1/4

Step-by-step explanation:

160 is a multiple of 4

160 / 4 = 40

40 1/4

You might be interested in
11 more than twice a number x
IRINA_888 [86]
11 more than twice a number x...
twice a number x = 2* x = 2x
and 11 more than twice a number x 
= 2 x + 11 Answer
4 0
3 years ago
Determine the margin of error for a 90% confidence interval to estimate the population mean when s = 40 for the sample sizes bel
Ann [662]

Answer:

a) The margin of error for a 90% confidence interval when n = 14 is 18.93.

b) The margin of error for a 90% confidence interval when n=28 is 12.88.

c) The margin of error for a 90% confidence interval when n = 45 is 10.02.

Step-by-step explanation:

The t-distribution is used to solve this question:

a) n = 14

The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

df = 14 - 1 = 13

90% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 13 degrees of freedom(y-axis) and a confidence level of 1 - \frac{1 - 0.9}{2} = 0.95. So we have T = 1.7709

The margin of error is:

M = T\frac{s}{\sqrt{n}} = 1.7709\frac{40}{\sqrt{14}} = 18.93

In which s is the standard deviation of the sample and n is the size of the sample.

The margin of error for a 90% confidence interval when n = 14 is 18.93.

b) n = 28

27 df, T = 1.7033

M = T\frac{s}{\sqrt{n}} = 1.7033\frac{40}{\sqrt{28}} = 12.88

The margin of error for a 90% confidence interval when n=28 is 12.88.

c) The margin of error for a 90% confidence interval when n = 45 is

44 df, T = 1.6802

M = T\frac{s}{\sqrt{n}} = 1.6802\frac{40}{\sqrt{45}} = 10.02

The margin of error for a 90% confidence interval when n = 45 is 10.02.

3 0
2 years ago
Sally is buying new school supplies she uses a 15% off coupon on the set of markers that was originally $3 she also bought some
timurjin [86]
[(100-15)/100 * $3]
= $2.55
$5.35 - $2.55
= $2.80 |80% paper|

80/100 = 2.80/x
4/5 = 2.80/x
4x = 14
x = 3.5

Original price of the paper = $3.50
6 0
3 years ago
7 - (-11) = _ <br><br> Please help having trouble with answer
stepladder [879]
Use long addition to evaluate: the answer is 18
8 0
3 years ago
Which situation(s) could by modeled by a linear function?
liraira [26]
1 and 111 only would be your answer
4 0
3 years ago
Read 2 more answers
Other questions:
  • Laminate buys 12 packs of juice and pays a total of $48. Use a ratio table to determine how much she will pay to buy 8 more pack
    12·1 answer
  • Margarita is hired by an accounting firm at a salary of $60,000 per year. Three years later her annual salary has increased to $
    11·1 answer
  • Angle A is in standard position and terminates in quadrant IV. If sec(A) = 4/3 , complete the steps to find cot(A).  Use the ide
    8·2 answers
  • What is the length of side PQ in this figure?
    12·2 answers
  • Triangle CAT is similar to Triangle DOG. The length of Segment CT is 6 ft. The length of Segment
    14·1 answer
  • At a raffle, 1500 tickets are sold at $2 each for four prizes of $500, $250, $150 and $65. You buy two tickets. What is the expe
    15·1 answer
  • 10 = - 1/4x +12 <br><br> Answer pls
    11·2 answers
  • What is the area of this shape?
    15·2 answers
  • Find the Equation of the lines.
    12·1 answer
  • Did I divided the polinoms in a correct way?<br>If I didn't please explain how ​
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!