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
Virty [35]
3 years ago
14

Given sin 0 and angle 0 is in Quadrant II, what is the exact value of cos 0 in

Mathematics
1 answer:
Anna007 [38]3 years ago
4 0

sin = 3/7

1 = sin²0 + cos²0

cos²0 = 1 - 9/49

cos²0 = 40/49

cos0 = √(40) / 7

since its in Quadrant 2 the sin is positive and cos is negative

cos0 = - √(40) / 7

You might be interested in
A line goes through the points (8,9) and (-2,4) .
ipn [44]
A) slope: 1/2
b) y-4=1/2(x+2)
c) y=1/2x+1

5 0
3 years ago
Kinu has 7 memory sticks that contain data from his computer. Some of the me
ra1l [238]

Solving the system of equations, it is found that x = 3, that is, there are 3 128 MB memory sticks.

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

We want to solve for x, thus, in the first equation, we write y as a function of x, that is:

y = 7 - x

Replacing in the second equation:

128x + 512(7 - x) = 2432

128x + 3584 - 512x = 2432

384x = 1152

x = \frac{1152}{384}

x = 3

x = 3, that is, there are 3 128 MB memory sticks.

A similar problem is given at brainly.com/question/24823220

6 0
2 years ago
How do you find the area of a triangle?
Firlakuza [10]

with it's formula

Area of Triangle = (1/2)(ab)sin(C) – This formula is used when two sides and the angle in between them are known. It can be obtained from the basic formula, Area of Triangle = 0.5 × base × height. The height with respect to side 'a' can be written in as b×sin(C), where C is the angle between a and b.

3 0
4 years ago
Your family travels 336 miles in 6 hours.find the unit rate
mamaluj [8]

Answer:

122 po yan po dapat

Step-by-step explanation:

thanks me letter

8 0
3 years ago
Read 2 more answers
Please help I have searched this question and have not found it. I am bad at math and I'm taking a test and need answers so plea
Vanyuwa [196]

Answer:

C because 18-6=12

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Other questions:
  • Solve the system of linear equations. (Enter your answers as a comma-separated list. If there is no solution, enter NO SOLUTION.
    13·1 answer
  • Please help . I’ll mark you as brainliest if correct!
    13·1 answer
  • Write the numbers in order from least to greatest.<br><br><br>3.4 2.9 √15 √6
    14·2 answers
  • The set of skills and knowledge needed to make informed decisions about
    5·1 answer
  • I don't know how to solve questions like this. k-10=-7
    5·2 answers
  • If you took a bigger handful of tiles would you have a better chance of having a higher value
    7·2 answers
  • What is the mean, median, and mode of this data? A. mean - 78 median - 77 mode - 69 B. mean - 77 median - 78 mode - 69 C. mean -
    12·1 answer
  • Help ASAP with mathematics
    15·1 answer
  • HELP ANOTHER ONE, Need anwser before time runs out...
    12·2 answers
  • Determine if 4x + 5 =10 and 5x + 4y = 28 is parallel or perpendicular
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!