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
pychu [463]
3 years ago
14

The line segment with endpoints (−20, 21) and (0, 0) is graphed on the standard coordinate plane and makes an angle, Θ, with res

pect to the x axis. What is cos Θ?

Mathematics
1 answer:
klemol [59]3 years ago
4 0
We have that
<span> points (−20, 21) and (0, 0)
Let 
A----> </span>(−20, 21)
B-----> (0, 0)

using a graph tool
see the attached figure

step 1

find the distance AB

<span>applying the Pythagorean theorem
</span>
AB²=20²+21²--------> 841---------> AB=√841-------> 29
AB=29 units

cos <span>Θ=20/29-------> 0.6897
</span>
the angle <span>Θ belong to the second quadrant
therefore
the cos</span><span>Θ is negative

the answer is
the cos </span>Θ is -0.6897

You might be interested in
I need an explanation, I don't understand them
Anettt [7]

The value of the fractions will be:

1. 8 13/20

2. 2 4/5

3. 5/6

<h3>How to explain the fraction?</h3>

1. 6 1/4 + 2 2/5

LCM of 20

6 1/4 + 2 2/5.

6 5/20 + 2 8/20

= 8 13/20

2. 1 1/5 × 2 1/3

= 6/5 × 7/3

= 42/15

= 14/5

= 2 4/5

3. 3 1/3 - 2 1/2

= 3 2/6 - 2 3/6.

= 5/6

Learn more about fractions on:

brainly.com/question/17220365

#SPJ1

5 0
2 years ago
How do you subtract nega
sergey [27]
Well think of it like this. lets say your teacher made you do this problem -48 - 10. I would just act like 48 is not an negative and add 10. After that I would put the negative back. So the answer would be -58. :P
3 0
3 years ago
Read 2 more answers
(a) Find the perimeter of the shape below. (Take π =<br>22/7)<br>3cm<br>3cm<br>12cm<br>20cm​
MariettaO [177]
Try 20cm








it’s correct
3 0
3 years ago
780 as a percentage of 1.5
Anna [14]
780 as a percentage of 1.5
=\frac{780}{1.5} *100
=52,000 percent of 1.5
4 0
3 years ago
If a dog weighs 240 ounces, how many grams does the dog weigh?
agasfer [191]

Answer: If the dog weighed 240 ounces it would weigh 6803.89 grams

Step-by-step explanation:

8 0
3 years ago
Other questions:
  • A ski club had 146 members. Each member paid $30 a month for training fees. How much did the club collect in fees for the year?
    8·1 answer
  • Find the area of a trapezoid whose parallel sides measure 8.5 m and 4.5 m, and whose altitude is 6.5 m.
    9·2 answers
  • A pollen grain is 3/10 to the third power centimeters wide. In an illustration, the pollen grain is 6 centimeters 10 wide. How m
    7·1 answer
  • At the circus Jon saw 3 unicycles how many wheels are on the unicycles in all
    13·2 answers
  • In a right triangle the lengths of the legs are a and b. Find the length of a
    10·1 answer
  • HELP 30 POINTS!!!!!
    6·1 answer
  • Find the percent increase from 8 to 18
    5·2 answers
  • A number cube is rolled 150 times. The number 3 comes up 43 times. What is the experimental probability of rolling 3? What is th
    10·1 answer
  • The terms shown below are the first three terms of a geometric sequence whose common ratio is positive.
    15·1 answer
  • Y = 2x + 4<br> 2x - y = -6
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!