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
Mkey [24]
3 years ago
7

Find the reference angle of 13π/5

Mathematics
1 answer:
Mars2501 [29]3 years ago
8 0

Answer:

2π/5

Step-by-step explanation:

You might be interested in
when asked to write a point slope equation for a line passing through the points (-3,-5) and (2,4) a student wrote y-4=-9/5(x-2)
Eduardwww [97]
(-3,-5)(2,4)
slope(m) = (4 - (-5) / (2 - (-3) = (4 + 5) / (2 + 3) = 9/5

y - y1 = m(x - x1)
slope(m) = 9/5
(2,4)...x1 = 2 and y1 = 4
sub
y - 4 = 9/5(x - 1)....this is the correct answer

the student figured the slope wrong....it is 9/5...not -9/5
5 0
3 years ago
In a Gallup poll, 1025 randomly selected adults were surveyed and 29% of them said that they used the Internet for shopping at l
svetoff [14.1K]

Answer:   (0.25,0.33)

Step-by-step explanation:

A 99% confidence interval for population proportion is given by:-

\hat{p}\pm 2.576\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}, where \hat{p} = sample proportion, n = sample size.

Given: n=1025, \hat{p}=0.29

A 99% confidence interval estimate of the proportion of adults who use the Internet for shopping:

0.29\pm 2.576\sqrt{\dfrac{0.29(1-0.29)}{1025}}\\\\=0.29\pm 2.576\sqrt{0.00020087804878}\\\\=0.29\pm2.576(0.01417)\\\\=0.29\pm0.03650192\\\\=(0.29-0.03650192,\ 0.29+0.03650192)\\\\=(0.25349808,\ 0.32650192)

\approx(0.25,\ 0.33)

Thus, a 99% confidence interval estimate of the proportion of adults who use the Internet for shopping = (0.25,0.33)

5 0
3 years ago
Find 18% of 14. Use a decimal.
posledela

Answer:

Step-by-step explanation:

2.52

4 0
3 years ago
Read 2 more answers
Whatis the value of y?​
Romashka [77]
Answer is A, y = 65

The top angle is 50 because 180 - 130 = 50
Since the top angle is 50, the two bottom angles have to add up to 130. Since the bottom angles are the same, you can do 130 / 2 to find the angles which equals 65.
3 0
3 years ago
Read 2 more answers
Divya starts a painting her grandpa's kitchen at 8:15 a.m. She finishes 75 minutes later
Mila [183]

Answer:

9:30 she finishes

Step-by-step explanation:

815 plus 75 is 890

there are 60 minutes in one hour

890-60 is 830

add 100 to represent another Hour

830 plus 100 is 930

9:30

therefore, it is 9:30

8 0
3 years ago
Other questions:
  • PLEASE HELP ASSSAAAPPPPP
    15·1 answer
  • Mack is repackaging 6/8- pound bags of birdseed into 1-pound bags of birdseed.What is the least number of 6/8 -pound bags of bir
    14·2 answers
  • Did I do this right? Explain if it is wrong
    5·1 answer
  • Write (x+1)(x+2) without parentheses
    6·1 answer
  • Stuck on this question.
    8·1 answer
  • Which statement is the inverse of the following? If the sum of the measures of two angles is 90°, then the angles are complement
    11·2 answers
  • Marjorie evaluated the expression 8x + 9 for x = 6 as shown:
    7·1 answer
  • I need it by tonight please. Explain a little too
    11·2 answers
  • Please help me guys I need it
    6·1 answer
  • The product of two numbers is -12. One of the numbers is 4. What is the<br> other number? _____
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!