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
Mnenie [13.5K]
3 years ago
5

Please help me with part c! Thank you!

Mathematics
1 answer:
Alecsey [184]3 years ago
7 0

Answer:

15√3/14.

Step-by-step explanation:

C.  The longest side x + 2 = 7 is opposite the largest angle 120 degrees. The other 2 sides are of length 3 and 5.

Using the Sine Law:

sin 120 = √3/ 2 = sin A'

7 / sin 120 = 5/ sin B

sin B =  5 sin 120 / 7 =  5√3/14.

7 / sin 120 = 3 / sin C

sin C =  3 sin 120 / 7 =  3√3 / 14

sin A + sin B + sin C =   √3/ 2  +   5√3/14 +  3√3 / 14

=  7√3/ 14  +   5√3/14 +  3√3 / 14

= 15√3/14.

You might be interested in
I WILL MAKE U THE BRAINLIEST
timama [110]

Answer:

answers is c

Step-by-step explanation:

3 0
3 years ago
What are the first two steps in solving the radical equation below?
Maru [420]

Answer:

B

Step-by-step explanation:

add 7 to get away the 7 on the left hand side

square both side to eliminate square root

6 0
3 years ago
Jackie is wrapping a birthday present The gift box is in the shape of a rectangular prism It has a length of 8 inches, a width o
Ludmilka [50]

Answer:

You will need about 134 square inches

3 0
4 years ago
Read 2 more answers
10m - 8n^2<br> (if m = 2 and 11 = -3)
Sophie [7]
Answer: -52

Explanation:
If you plug in the variable answers the equation is 20-8•-3^2 then do the exponent so, 20-8•9, then multiply so 20-72 which is -52.
8 0
3 years ago
Determine if an exponential would be an appropriate model for the data shown in each scatter plot. Select one that applies.
choli [55]

Answer:

  • Graph 1: No, a linear model would be more appropriate.
  • Graph 2: Yes
  • Graph 3: No, a quadratic model would be more appropriate.
5 0
3 years ago
Other questions:
  • Select the expression that represents the following statement: multiply the difference of 5 and 2 by 7, and then add 6.
    5·1 answer
  • In how many ways can a family of four be seated at a round table if two brothers must sit together?
    12·1 answer
  • What is the opposite 25 degrees
    13·2 answers
  • X^3-3x^2+81x-243
    10·2 answers
  • A teacher asked his students to vote for an animal to be their class pet. Five-eighteenths of the students voted for a rabbit, v
    8·1 answer
  • One morning, Justin drove 5 hours before stopping to eat lunch at chick-fil-A. After lunch, he increased his speedy by 10 mph. I
    7·1 answer
  • What is nine tenths-two sixths
    11·1 answer
  • I had to write something here so ignore what I am going to say. NSDBHJFGDKTRTEWGSFZFGSDYJFH
    11·2 answers
  • Evaluate plzzz help am giving brainliest
    10·1 answer
  • Please Answer this as soon as possible.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!