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
luda_lava [24]
3 years ago
8

Help me pleaseeeeee!!!!!!

Mathematics
1 answer:
mojhsa [17]3 years ago
3 0

Step-by-step explanation:

AC = 20

AB = 18

BC² = 20²+ 18² -2•20•18•cos(52°)

BC² = 280.72

BC = √280.72

BC ≈ 16.75

Angle C:

18² = 20² + 16.75² -2•20•16.75•cos(C)

324 = 400 + 280.72 -670•cos(C)

cos(C) = -356.72/-670

cos(C) ≈ 0.53

acos(0.53) = C

C = 57.8°

Angle B:

180-52-57.8 = 70.2°

You might be interested in
How are your finances connected to your beliefs? Own words
Liula [17]

Answer:

Due to religion you may be obligated to donate 10% or something of that matter.

Step-by-step explanation:

7 0
3 years ago
Mrs. Avery’s test for her 1st period lasted 9 minutes longer than it was supposed to. Write an expression for the total amount o
DedPeter [7]
It is m + 9 because if we let m = 60 and the lest was 9 minutes longer than m, the test would be 69 minutes long. Therefore the answer is m + 9
4 0
3 years ago
Kareen says that (3 + 2) + 6 = 3 + (2 + 6). What property of addition is he using?
Anvisha [2.4K]

Answer: Im pretty sure thats associative property.

3 0
3 years ago
What's the best estimate for 1/3?
Arisa [49]
1/3 as a decimal is roughly .333 repeating
7 0
3 years ago
Read 2 more answers
Change: 0.9 miles ____ inches
Akimi4 [234]
Formula 1 mi =in * 63,360 So 0.9*63,360= 57024 inches
4 0
3 years ago
Other questions:
  • Solve showing all work, simplify completely: 6/12 + 1/3
    14·1 answer
  • What is 2(n+5)=-2 showing work
    5·2 answers
  • Pls help with Question 11.<br> I need to submit it by tmr
    12·1 answer
  • How does the length of the hypotenuse in a right triangle compare to the lengths of the legs?
    6·2 answers
  • it snowed 7/8 inches on Monday. on Tuesday it snowed 1/4 inches less than it did on Monday. how much did it snow on tuesday HELP
    14·2 answers
  • (-8) x 10 x 9 is equal to
    7·2 answers
  • Name 3 planes that intersect at point O
    6·1 answer
  • PLEASEEE HELP ME WHAT IS THE ANSWER!!
    8·1 answer
  • The 9th and the 12th term of an arithmetic progression are 50 and 65 respectively. find the common difference
    9·1 answer
  • Is centroid and Circumcentre same?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!