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
atroni [7]
4 years ago
11

I failed to use the cos and sin rule ​

Mathematics
1 answer:
statuscvo [17]4 years ago
7 0
Cos = adjacent side / hypotenuse

Sin = opposite side / hypotenuse
You might be interested in
What is the result of subtracting the second equation from the first?<br> -2x+y=0<br> 7x+3y=2
ikadub [295]

Answer:

5x -2y = -2

Step-by-step explanation:

-2x+y=0

-7x+3y=2

Subtract the second equation from the first

-2x+y=0

7x-3y=-2

------------------

5x -2y = -2

4 0
3 years ago
Some of the steps for completing the square to solve x2 + 5x = 2 are shown. x2 + 5x = 2 x2 + 5x + = 2 + Which are solutions of x
Rufina [12.5K]
The solutions would be +0.37 and -0.37.

When completing the square, we take 1/2 of the value of b (in this case 5).  5/2=2.5.  We then square this number:  2.5²=6.25.  We add this value to both sides of the equation:

x²+5x+6.25 = 2+6.25
(x+2.5)² = 8.25

Take the square root of both sides:
√(x+2.5)² = √8.25
x + 2.5 = 2.87

Subtract 2.5 from both sides:"
x+2.5-2.5 = 2.87-2.5
x = 0.37

We have to take the positive and negative values for solutions, however, since a square root has both positive and negative answers.
4 0
3 years ago
Read 2 more answers
Help please! or else
Lorico [155]

Answer:

or else what

Step-by-step explanation:

use slader.com

8 0
3 years ago
Help me its a 3rd grader work of my niece
gogolik [260]
5 or more round up
4 or less round down
7 0
3 years ago
Read 2 more answers
Please help me with my math homework :D (I'll mark brainliest)
EastWind [94]

Answer:

I believe the answer is A

Step-by-step explanation:

pls dont report me if wrong

5 0
3 years ago
Read 2 more answers
Other questions:
  • How do I solve 1/3x=x-22
    5·1 answer
  • (x-y)/(2)+(7y)/(3)=5
    10·1 answer
  • A bag contains 5 blue marbles, 6 red marbles, and 7 green marbles. two random marbles are drawn, one at a time without replaceme
    11·1 answer
  • PLEASE HELP WILL GIVE BRAINLY!!!!!!!!!What is the vertex of the graph of the function f(x) = x2 + 8x − 2 ?
    6·2 answers
  • If 3 is added to twice a number the result is 17
    15·1 answer
  • HELP ME W THIS PROBLEM PLEASE!!!!!
    8·1 answer
  • Find the discount savings on a bicycle that originallycosts $230 but is on sale for 40% off. Show yourwork.
    5·1 answer
  • 1. convert 1011101 two to
    12·1 answer
  • Find the size of unknown angles<br>e) 100°+a°​
    5·1 answer
  • Find the area of the sector is formed by NMP round your answer to the nearest hundredth of a square centimeter
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!