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
Leokris [45]
3 years ago
15

What’s the correct answer for this?

Mathematics
1 answer:
Yakvenalex [24]3 years ago
7 0

Answer:

B

Step-by-step explanation:

According to the theorem, equal sides have equal angles opposite to them so AB AND AC are equal so x and y are also equal

You might be interested in
A Survey of 85 company employees shows that the mean length of the Christmas vacation was 4.5 days, with a standard deviation of
GenaCL600 [577]

Answer:

The 95% confidence interval for the population's mean length of vacation, in days, is (4.24, 4.76).

The 92% confidence interval for the population's mean length of vacation, in days, is (4.27, 4.73).

Step-by-step explanation:

We have the standard deviations for the sample, which means that the t-distribution is used to solve this question.

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 = 85 - 1 = 84

95% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 84 degrees of freedom(y-axis) and a confidence level of 1 - \frac{1 - 0.95}{2} = 0.975. So we have T = 1.989.

The margin of error is:

M = T\frac{s}{\sqrt{n}} = 1.989\frac{1.2}{\sqrt{85}} = 0.26

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

The lower end of the interval is the sample mean subtracted by M. So it is 4.5 - 0.26 = 4.24 days

The upper end of the interval is the sample mean added to M. So it is 4.5 + 0.26 = 4.76 days

The 95% confidence interval for the population's mean length of vacation, in days, is (4.24, 4.76).

92% confidence interval:

Following the sample logic, the critical value is 1.772. So

M = T\frac{s}{\sqrt{n}} = 1.772\frac{1.2}{\sqrt{85}} = 0.23

The lower end of the interval is the sample mean subtracted by M. So it is 4.5 - 0.23 = 4.27 days

The upper end of the interval is the sample mean added to M. So it is 4.5 + 0.23 = 4.73 days

The 92% confidence interval for the population's mean length of vacation, in days, is (4.27, 4.73).

8 0
3 years ago
50 points
mixer [17]

Answer:

c = -13.78.

Step-by-step explanation:

21.2x + c  ≡ 5.3(4x - 2.6)

21.2x + c  ≡ 21.2x - 13.78

Equating constant terms:

c = -13.78.

7 0
2 years ago
Read 2 more answers
When rolling two dice , there are blank different ways to roll at least one 4.
Ann [662]

Answer:

3

Step-by-step explanation:

These 3 ways are:

  1. The first die showing a 4 and the second die showing a different number
  2. The second die showing a 4 and the first die showing a different number
  3. Both dice showing 4s
7 0
3 years ago
Read 2 more answers
The length of a rectangle is 18 cm less than five times it's width. It's area is 35 cm². Find the dimensions of the rectangle.
Aleksandr-060686 [28]
5 x 7 because if 5 is the width is 25 then 18 minus that is 7 and 7x5 = 35
7 0
3 years ago
Each day, a salesperson earns $25 plus 5% of their total sales for the day. The salesperson's goal is to earn more than $50 on T
uysha [10]
They need to sell $500 of stuff

4 0
2 years ago
Other questions:
  • The owner of a stereo store wants to advertise that he has many different sound systems in stock. The store carries 6 different
    10·1 answer
  • 1 inch = 2.54 centimeters The radius of the hexagon is 30 cm What is the approximate area to be covered by the window in square
    6·1 answer
  • Val takes her four sons, Hal, Cal, Sal and Mal, to get their hair cut. It's crowded, so there's only time for two of them to get
    5·1 answer
  • Explain how you could convert 8 quarts to gallons without measuring
    15·1 answer
  • TIME REMAINING
    12·1 answer
  • In need of some help
    10·1 answer
  • Can someone plz help me with this one problem plzzzzz I’m being timed!!!!
    8·1 answer
  • Determine the function that models the median home price, f (n), in thousands of dollars, n years since
    10·1 answer
  • 5-1 Attributes and Transformations of Quadratic Functions
    11·1 answer
  • What is the slope of the line containing the ordered pairs (5,-3) and (-2,-3)
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!