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
erik [133]
3 years ago
12

I just took a screenshot of it, but I have no idea how to do this

Mathematics
1 answer:
Marianna [84]3 years ago
3 0

Answer:

84°

Step-by-step explanation:

Solve for n. Note that the angle measurements of a circle will equal 360°. Set all the angles = 360°.

7n + 12 + 13n - 16 + 6n = 360

Combine like terms:

(7n + 13n + 6n) + (12 - 16) = 360

26n - 4 = 360

Isolate the variable, n. Note the equal sign, what you do to one side, you do to the other. First, add 4 to both sides:

26n -4 (+4) = 360 (+4)

26n = 360 + 4

26n = 364

Next, divide 26 from both sides:

(26n)/26 = (364)/26

n = 364/26

n = 14

Next, plug in 14 for n in the angle measurement, 6n:

6n = 6(14) = 84°

Note that these are central angles, which means that the arc's will be the same measurement as the angle's measurement.

arcBC = 84°

84° is your answer.

~

You might be interested in
A theater has a seating capacity of 750 and charges $3 for children, s5 for students, and $7 for adults. At a certain screening
-BARSIC- [3]

Answer:

Between 150 and 450

Step-by-step explanation:

We are going to find the number by resolving  a system of linear equations.

First we write the system equations :

C+S+A=750

Where C : children, S : students and A : adults

The equation represents the ''full attendance''

The second equation :

3C+5S+7A=3450

This equation represents the totaled receipts.

The system :

C+S+A=750\\3C+5S+7A=3450

has the following associated matrix :

\left[\begin{array}{cccc}1&1&1&750\\3&5&7&3450\end{array}\right]

By performing elementary matrix operations we find that the matrix is equivalent to

\left[\begin{array}{cccc}1&0&-1&150\\0&1&2&600\\\end{array}\right]

The new system :

C-A=150\\S+2A=600

Working with the equations :

C = 150 + A\\S = 600-2A

Our solution vector is :

\left[\begin{array}{c}C&S&A\end{array}\right] =\left[\begin{array}{c}150+A&600-2A&A\end{array}\right]

For example :

If 0 adults attended ⇒ A = 0

C = 150 + 0 \\C = 150\\S = 600 - 2A\\S = 600

This verify the totaled receipts equation :

150($3)+600($5) = $ 3450

A ≥ 0 ⇒ If A = 0 ⇒ C = 150

C = 150 is the minimum children attendance

From the equation :

S = 600 -2A

S ≥0

600 - 2A ≥ 0

600 ≥ 2A

300≥ A

A is restricted to the interval [ 0, 300]

When A = 0 ⇒ C = 150

When A = 300 ⇒C = 150 + A = 150 + 300 = 450

Children ∈ [ 150,450]

With C being an integer number (including 0)

Also S and A are integer numbers (including 0)

7 0
3 years ago
Can someone pls help me out
USPshnik [31]

Answer:

It is a money market account. So answer A.

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Ms. Fitzsimmons wanted to buy two of the same jackets in different colors online. The online store
zepelin [54]

Answer:

the cost of one jacket is $27.14

4 0
2 years ago
Read 2 more answers
Complete the factorization of 4x2 – 9.<br> 4x2-9= ( x-<br> x+ )
alukav5142 [94]
Here’s the answer for your question. The A/= it means the answer is okay.

5 0
3 years ago
Read 2 more answers
The answer for the slope of -5,2 and -1,-6
Annette [7]

Answer:

M = -2

Step-by-step explanation:

8 0
3 years ago
Other questions:
  • A parabolic satellite dish reflects signals to the dish’s focal point. An antenna designer analyzed signals transmitted to a sat
    5·1 answer
  • The image from reflecting a figure in the third quadrant over the x-axis
    15·1 answer
  • 1 minus 1/2 minus 1/3 minus 1/4
    7·1 answer
  • How could you calculate 23% of a number explain
    13·2 answers
  • Better?????????????????????
    12·2 answers
  • An atom of a certain element has 37 protons, 37 electrons, and a mass number of 85. How many neutrons are
    15·1 answer
  • A plank is 6.7 feet long. Arachna wants to cut the plank into 0.8-foot pieces. how many 0.8-foot pieces can she get?
    6·1 answer
  • What is the base?<br> Area= 9/10<br> Height=3/5<br><br> PLEASE HELP ME!!
    6·1 answer
  • Carbon - 14 decays exponentially according to
    9·1 answer
  • .Natalie has $680 to spend at a bicycle store for some new gear and biking outfits.Assume all prices listed include tax.She buys
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!