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
Snowcat [4.5K]
3 years ago
8

A=2 b=2 c=1 Find the value of 2abcosC

Mathematics
1 answer:
mel-nik [20]3 years ago
6 0

Answer:

2abCosC = 1

Step-by-step explanation:

The cosine rule is

=> a^2= b^2+c^2-2abCosC

For 2abCosC, it becomes

=> 2abCosC = b^2+c^2-a^2

=> 2abCosC = (2)^2+(1)^2-(2)^2

=> 2abCosC = 1

You might be interested in
Need help not sure about my answers
shusha [124]

Answer:

  x = 0, x = 1

Step-by-step explanation:

Both graphs correctly plot f(x).

Only the bottom graph correctly plots g(x).

The points of intersection of f(x) and g(x) are (0, -4) and (1, -2). The x-value of these points are x = 0 and x = 1. These are the values of x for which f(x) = g(x).

3 0
2 years ago
Someone help plz
Lilit [14]
Hope this helps !!!!

7 0
3 years ago
4 to the fourth negative power multiplied by four to the fifth power
Alex Ar [27]
Simplify the following:4^5/4^4
Combine powers. 4^5/4^4 = 4^(5 - 4):4^(5 - 4)
5 - 4 = 1:Answer: 4
3 0
3 years ago
Charmaine pays $848 for landscaping rocks for a project. The cost per pound is 32 cents. How many pounds did she purchase? 0.265
krok68 [10]

Answer:

2,650 pounds

Step-by-step explanation:

Given data

Amount paid= $848

Rate = 32 cents= $0.32

Hence the amount she purchased is

Quantity= Amount* Rate

Quantity = 848/0.32

Quantity= 2650

3 0
2 years ago
Read 2 more answers
You are going to mix a gallon bucket of window cleaner. The instructions direct you to mix 1 part cleaner to 3 parts water. How
Pie
One gallon equals to 4 quarts.

The instructions tell you to add 1 part of cleaner and 3 parts of water, in total 4 parts. It makes it easy as you can take that one part = one quart.

You will use 3 quarts of water and 1 quart of cleaner. The answer is D.


4 0
3 years ago
Read 2 more answers
Other questions:
  • DISTRIBUTIVE PROPERTY. 3p-6q=3(______) the answer is p-6 but HOW?!!?!!!??
    13·2 answers
  • Simplify √72 Please help will give brainliest to first CORRECT answer
    11·2 answers
  • A small engine can do 1000 joules of work in 45 seconds. Calculate its power in watts. Round
    15·1 answer
  • Evaluate the expression?!
    9·1 answer
  • A 25 foot long ladder is propped against a wall at an angle of 18 degrees with the wall. How high up the wall does the ladder re
    8·2 answers
  • What is the slope of the line that passes through (-4, 5) and (1, 3)?​
    15·1 answer
  • A sphere has a radius of 4. what is the volume of the sphere? show your answer in terms of pi. I've been stuck on this for 4 day
    11·2 answers
  • 3^-3 x 10^-3 what is the value?
    6·1 answer
  • Ms. Lopez buys 12 packages of socks for her sons. Each package contains 5 pairs of socks. If she gives one son 32 pairs, how muc
    9·1 answer
  • Space Shuttle Marion is observing the launch of a space
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!