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
Allushta [10]
3 years ago
11

Evaluate arccos (-1/2)

Mathematics
1 answer:
Crazy boy [7]3 years ago
3 0

Answer:

120 degrees

Step-by-step explanation:

plugged into calculator

cos inverse of -1/2

Please mark Brainliest if you feel like it:)

You might be interested in
HELP ME PLEASE, i will give brainliest
max2010maxim [7]

Based on the right angle triangle and the given parameters, cos K = 5/13

<h3>Trigonometric ratios</h3>

  • sin = opposite / hypotenuse

  • cos = adjacent / hypotenuse

  • Tan = opposite / adjacent

Given parameters:

  • Hypotenuse = 13
  • Adjacent = 5
  • Opposite = 12

Therefore,

cos K = adjacent / hypotenuse

cos K = 5/13

Learn more about right triangle:

brainly.com/question/2217700

#SPJ1

6 0
2 years ago
Find the value of x please!! ASAP
cricket20 [7]

Answer:

x = 10

Step-by-step explanation:

By looking at the picture, I can tell the angle of the 3x is also 30 degrees.

This means 3x = 30.

When you solve for x by dividing each side by 3, you result with the answer of x = 10.

To check you work, plug in 10 for x to recieve 30 degrees again.

3 0
2 years ago
The number 20 is no less than the difference of 4 times a number c and 8.
sammy [17]

Answer:

20 >= 4*c - 8

Step-by-step explanation:

5 0
2 years ago
Hey again! back again with ratios
ozzi

Answer:

Two ratios equivalent to 27:9

A) 3:1

B)9:3

3 0
2 years ago
Read 2 more answers
What is -5.25 to the nearest tenth?
kakasveta [241]
-5.25 to the nearest tenth is -5.3. 
4 0
3 years ago
Other questions:
  • What is the constant of varation for thid relationship xy= -16
    8·1 answer
  • Six more than the quotient of four and a number x as an expression
    7·1 answer
  • Evaluate the expression below for x = 4.<br> 3x + 2 • X - 81 - 12
    8·1 answer
  • mia wants to earn 2500 in her job at a bycicle store she is paid 55 for every bycicle she tunes up the minimum number of bycicle
    12·1 answer
  • How do I express 540 as a product of prime factors
    12·2 answers
  • The photography club decided to go on a field trip to the Andy Warhol museum. They had to break into smaller groups once they go
    15·1 answer
  • Describe pattern below. 8,12,16,20,24,28
    13·2 answers
  • Me ayudan plissssssss
    7·1 answer
  • Calculate the area of the shaded region in each figure. Use 3.14 for π and round to the nearest tenth, if necessary.
    11·1 answer
  • Help meez 40 pts use surface area formula of cylinder that is for Lateral surface area and for total surface area
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!