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
dexar [7]
4 years ago
7

Write the following expression as a function of a positive acute angle. Use "+" to indicate a positive value and "-" to indicate

a negative value.
cos(-240°) = cos
Mathematics
1 answer:
Mama L [17]4 years ago
4 0

cos(-240°) = cos 120°; the "adjacent sides" and the "hypotenuses" are the same in both cases.  The supplement of 120° is 60°, and 60° is a positive acute angle.  Since cos(-240°) is negative, we need to write

cos(-240°) = -cos(60°).  

Check:  cos(60°)= 1/2, so - cos(60°) = -1/2, which is the value of cos(-240°).

You might be interested in
How to rewrite subtraction as addition
OlgaM077 [116]
7 - 4 = 3

or

7 + (-4) = 3
4 0
3 years ago
Read 2 more answers
If you multiply two decimals that are less than 1, can you predict whether the product will be less than or greater than the fac
AlekseyPX

Answer:

it would be greater than the factors

Step-by-step explanation:

5 0
4 years ago
BASKETBALL The standard width of a high school basketball court is 50 feet. If 1 meter = 3.3 feet, what is the width of the bask
11Alexandr11 [23.1K]

Answer:

15.2 meters

Step-by-step explanation:

50 ÷ 3.3 = 15.15

7 0
3 years ago
I need help understanding rate of change and slope.
Papessa [141]
Rate of Change and Slope are both the same thing. They show the amount of change on the “y-axis” as the “x-axis” moves. I hope it helps... we learned this in class about a month ago.
5 0
3 years ago
Read 2 more answers
Bishaar's height is measured at 4.75 feet tall. Express Bishaar's height in meters. Round your answer to the nearest hundredth m
LuckyWell [14K]
To make the conversion, the first thing you should know is that
 1m = 3.28ft
 Then, doing the conversion we have
 (4.75ft / 3.28ft) * (1m) = 1.448170732m
 nearest hundredth
 1.45m
 anwser
 Bishaar's height is1.45m
6 0
4 years ago
Other questions:
  • What's the distributive property for 16+48
    12·2 answers
  • PLS HURRY GOT 10 MINUTES! JUST NEED THESE TWO QUESTIONS AND I DON'T KNOW THEM! WILL GIVE BRAINLIEST!!
    9·2 answers
  • If (-4,-2) and (2,6) are opposite points on a circle, what is the equation of the circle?
    5·1 answer
  • Please help me with this problem
    5·1 answer
  • Larry can clear his driveway of a foot of snow in 1 hour and 45 minutes, and Donald can complete the same job in 1 hour and 10 m
    15·1 answer
  • Review your answers to Question 2. What happens to the coordinates of a shape when the shape reflects about the x-axis? What hap
    10·1 answer
  • I need help with this geometry
    5·1 answer
  • Peter’s father told peter to buy four-tenths of a pound of chili powder. Each package is marked with its weight. What package sh
    7·1 answer
  • PLEASE HELP ME answer these
    8·1 answer
  • Kaley is mailing some pants to her sister who is attending college in Alabama. Each pair of pants weighs 12 ounces and the shipp
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!