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
scZoUnD [109]
3 years ago
7

Find the angle of arc BC

Mathematics
1 answer:
amid [387]3 years ago
6 0

Answer:

   96°

Step-by-step explanation:

The measure of arc EC is twice the measure of ∠DEC, so is ...

  arc EC = 2×68° = 136°

The measure of arc BC is found from the sum of arcs around a circle.

  BC +CE +EB = 360° = BC +136° +128°

  BC = 96° . . . . . subtract 264°

You might be interested in
The annual salaries of the ten employees of a small company are shown.
Evgesh-ka [11]

Answer:

40,000

Step-by-step explanation:

8 0
3 years ago
PLEASE HELP ME
stiv31 [10]
Since it's a right triangle you can use the Pythagorean theorem or Trig (Soh Cah Toa).

I'll just use the Pythagorean theorem : a² + b² = c²
a = 9
b = x
c = 18

9² + x² = 18²
81 + x² = 324
x² = 324 - 81
x² = 243
x = √(243)

factor 243 to find a perfect square

x = √(3*81)
x = 9√(3)<u />
5 0
3 years ago
Answer fast please!!!!
MrMuchimi

Answer:

6z + 9

Step-by-step explanation:

distribute 3/4 by 8z to get 6z

distribute 3/4 by 12 to get 9

4 0
2 years ago
Roberta makes $9 an hour plus a 10.5% commission selling jewelry an hour shift in which she sells $880 worth of jewelry. How muc
timama [110]

Answer:

Roberta earns $164.4 on an 8 hr shift.

Step-by-step explanation:

In one hour  Roberta makes $9

So if she works for 8 hours she will be making

=> ( 9 X 8)$

=>72$

Also she earns a commission of 10.5% on selling a jewellery  worth $880

So 10.5% of 880 is

=> \frac{10.5}{100}\times 880

=>  0.105\times 880

=> 92.4

Hence  Roberta will be earning a total amount of

(72+ 92.4)

=>$164.4

3 0
3 years ago
a rectangular sandbox has a width of 15 ft and a length of X feet which expression represents the perimeter of the sandbox ​
Phantasy [73]

Answer:

15(2) + x(2)= perimeter

Step-by-step explanation:

5 0
3 years ago
Other questions:
  • How do you solve this
    9·1 answer
  • One day, a king left his castle with a bag of silver coins to wander his kingdom. to the first peasant he met, he gave one-half
    6·2 answers
  • Which of the following sets of numbers could be the lengths of the sides of a triangle?
    14·1 answer
  • The table represents the speed of frog A at a frog jumping contest. Frog B travels 2 feet each second. If the course is 20 feet
    13·1 answer
  • Divide the binomial by the monomial to find the quotient.
    8·2 answers
  • 3x + 12y = 24<br> 3x - 3y = 24
    13·2 answers
  • Need help to Solve A=TX, for X
    15·1 answer
  • Which number line correctly shows 0.8 + 0.3? Help
    6·1 answer
  • What is reductionism​
    11·2 answers
  • What is the solution to this inequality? (x | x &lt; 7)
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!