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
Rzqust [24]
3 years ago
6

Set up a system of equations and then use your calculator to solve: In triangle ABC, the sum of angles and c is equal to three t

imes angle B. Angle C is 10 degrees more than twice angle B. Find the measure of each angle.(Hint: The angles of a triangle add up to 180 degrees.)
Mathematics
1 answer:
aalyn [17]3 years ago
4 0

Answer:

Step-by-step explanation:

angle A = 40

angle B = 60

angle C = we don't know.

A + B + C = 180

C = 180 - A - B

C = 180 - 40 - 60

C = 80

40 + 60 + 80 = 180

180 = 180...It checks!

You might be interested in
Math! :( no links answer correct for brainliest!
dem82 [27]
90 squareroot 2
In decimal form it’s 127.27922
4 0
3 years ago
A study was done to determine the average number of homes that a homeowner owns in his or her lifetime. For the 50 homeowners su
ipn [44]

Answer:

The 95% confidence interval for the true average number of homes that a person owns in his or her lifetime is (4,6.2).

Step-by-step explanation:

We have the standard deviation 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,which is the sample size subtracted by 1. So

df = 50 - 1 = 49

95% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 49 degrees of freedom(y-axis) and a confidence level of 1 - \frac{1 - 0.95}{2} = 0.975. So we have T = 2.0096

The margin of error is:

M = T\frac{s}{\sqrt{n}} = 2.0096\frac{3.8}{\sqrt{50}} = 1.1

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 5.1 - 1.1 = 4

The upper end of the interval is the sample mean added to M. So it is 5.1 + 1.1 = 6.2.

The 95% confidence interval for the true average number of homes that a person owns in his or her lifetime is (4,6.2).

7 0
2 years ago
The Silvertons are looking at purchasing a new car for their family. Steve Silverton wants to purchase a 2019 Chevrolet Tahoe wh
kicyunya [14]
Nana baca. Jxhvcjsje
3 0
2 years ago
Read 2 more answers
How can you use volume formulas to solve problems?
Katarina [22]
Well, it depends what shape you are using the volume formula for. If it's for a square (I'm assuming) then the volume formula would be:

Side^2

6 0
3 years ago
0.08 was rounded to 1 significant figure. What is the lower bound?
Black_prince [1.1K]
I believe the answer is 0.9 because a significant figure is a similar difference
7 0
3 years ago
Read 2 more answers
Other questions:
  • Is -4 5/12 a rational or irrational number?
    9·1 answer
  • Select the correct answer.
    6·1 answer
  • On Monday, you had $151 in your checking account. On Tuesday, you wrote a check for $248. How much money should you deposit to p
    7·1 answer
  • Find the range of the function f(x) = 4x - 7,
    11·1 answer
  • At a local fitness​ center, members pay aa ​$12 membership fee and ​$4 for each aerobics class. Nonmembers pay ​$5 for each aero
    8·2 answers
  • What can you break down 29 into
    12·2 answers
  • Andre wants to put a carpet down on a circular room that has a diameter of 14 feet
    10·1 answer
  • Watch help
    9·2 answers
  • Children. The
    13·1 answer
  • Suppose that the mean and s.d of the tuition fee paid by bs mathematics students in umt is 150and 30 in uds, respectively. it is
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!