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
Brrunno [24]
2 years ago
14

Use the low of Cosines to solve the given triangle. Round your answer to two decimal places. a = 51, b = 21, c = 68

Mathematics
1 answer:
babunello [35]2 years ago
7 0

Using the cosine rule, the measure of the triangles is a = 51, b = 21, c = 68, A = 30.37°, B = 12.02° and C = 137.61°

<h3>What is an equation?</h3>

An equation is an expression that shows the relationship between two or more numbers and variables.

Cosine rule is given as:

a² = b² + c² - 2bc * cosA

Given that a = 51, b = 21, c = 68, hence:

51² = 21² + 68² - 2(21)(68) * cosA

A = 30.37°

21² = 51² + 68² - 2(51)(68) * cosB

B = 12.02°

68² = 21² + 51² - 2(21)(51) * cosC

C = 137.61°

Using the cosine rule, the measure of the triangles is a = 51, b = 21, c = 68, A = 30.37°, B = 12.02° and C = 137.61°

Find out more on equation at: brainly.com/question/2972832

#SPJ1

You might be interested in
A recipe require 1/4 lb of onions to make servings of soup. Mark has 1 1/2 lb of onions. How many servings can mark make
djyliett [7]

he can make 6 servings of soup

7 0
3 years ago
Read 2 more answers
21 ÷ 30 equals what?​
sweet [91]

The answer should be .7

6 0
3 years ago
Read 2 more answers
What is the result of adding these two equations?<br> 4x – 4y = -2<br> –9x – 4y = -3
kondaur [170]

Answer: -5x-8y=-5

Step-by-step explanation:

add right sides of equation and even them with result of adding right sides of equation

4x-4y-9x-4y=-2-3

-5x-8y=-5

5 0
3 years ago
A bag contains blue marbles and red marbles, 56 in total. The number of blue marbles is 8 more than 2 times the number of red ma
Nikolay [14]

24 Blue marbles.

Explanation:

56 - 8 = 48

48 / 2 = 24

so if there are 24 blue marbles, 24 x 2 = 48, and then 8 more is 56.

8 0
3 years ago
Read 2 more answers
Vincent needs 20 inches of wood to makeOne shelf. How many feet of wood does Vincent need to make 6 shelves
butalik [34]

Answer:

10 feet

Step-by-step explanation:

  1. Multiply 20 by 6 which will give the answer 120 (in inches).
  2. Then convert 120(inches) to feet by dividing with 12.
  3. The answer will be 10(feet) needed for six shelves.

20x6= 120

120/12=10

=10 ft

6 0
2 years ago
Other questions:
  • Given the relationship x2 + 3y2 =12, with y &gt; 0 and dx, dt = 2 units/min., find the value of dy, dt at the instant y = 1 unit
    8·1 answer
  • 3. Tell which number is prime: 18, 42, 68, 79.
    9·2 answers
  • From statements in J. R. R. Tolkien's "The Fellowship of the Ring" (Prologue I, paragraph 4), I construe that the heights of hob
    10·1 answer
  • The distance that Sarah travels varies directly to how long she drives. She travels 440 miles in 8 hours. Write the equation tha
    10·1 answer
  • Need help on 2,3,4 thx!
    7·1 answer
  • I forgot about scientific notation
    6·1 answer
  • How much is 78ml when you turn it to litres<br>​
    5·2 answers
  • 10a-4b+10-9b? can someone help
    14·2 answers
  • Rebekah has $400 to spend on a video game system and games. The system cost $289.99 and each game costs $32.29. How many games c
    8·2 answers
  • A customer opens a checking account and a savings account at a bank. They will deposit a maximum of $600, some in the checking a
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!