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
iVinArrow [24]
3 years ago
14

If sin =1/2then show that 3cos -4cos^3=0z

Mathematics
1 answer:
Katarina [22]3 years ago
7 0

Step-by-step explanation:

ever coner should have a value.... for example sinA or cos$

please check the question again

You might be interested in
The original price was $20,000 the sales price was $18,000 what is the percent discount
lord [1]

Answer:

10 percent :)

Step-by-step explanation:

Discount = Original Price x Discount %/100

Discount = 20000 × 10/100

Discount = 20000 x 0.1

You save = $2,000.00

Final Price = Original Price - Discount

Final Price = 20000 - 2000

Final Price = $18,000.00

i hope this helps! pls stay happy and healthy, friend! :))

3 0
3 years ago
The screen on Lin's cell phone allows for 8 lins of text per message. The maximum number of characters for each message is 10. H
julia-pushkina [17]
There will 80 characters per each line hold. Hope it help!
8 0
4 years ago
Sergio is s years old. which expression shows how old he will be 7 years from now? question 5 options: 7s 7 – s s 7 7s 7
notsponge [240]
S+7. Tell your teacher never to use s as a variable ever again.
8 0
3 years ago
Solve the following system of equations -8x -8y=24 2x + y=-7
leonid [27]

Solve the equation using substitution?

4 0
3 years ago
Read 2 more answers
Corey is out on the roads doing a long run, and also doing some mental calculations at the same time. corey's pace is 3 strides
amm1812
A. 352 seconds or 5 minutes 52 seconds.
B. 320 seconds or 5 minutes and 20 seconds  
C. 27687 steps
There are 5280 feet per mile. In A, 3 strides per second at 5 feet gives us 15 ft per second. 5280/15 = 352 seconds. In B, 3 strides per second at 5.5 feet gives us 16.5 feet per second. 5280/16.5 = 320 seconds. In C, we calculate the total feet to divide by 5 per step. multiply 26 miles by 5280 to get feet per mile and multiply 385 by 3 to get the feet per yard. Add them together. then divide by 5. 26(5280) + 385(3) =138435. 138435/5 = 27687 steps
 
8 0
3 years ago
Other questions:
  • If ƒ(x) = 15x + 7 and g(x) = x2 – 5x, find (ƒ + g)(x).
    5·1 answer
  • 13x-7+7x-13=180 whats the answer?
    10·2 answers
  • Simplify 3x -5 + 25x-9
    9·2 answers
  • Are two equilateral triangles always equal
    7·2 answers
  • PLEASE HELP!!! Find the area of the shaded polygon:
    8·1 answer
  • Kitchen tiles cost £2.75 each<br> work out the total cost for 62 tiles
    9·2 answers
  • What is lcm of 30and 45
    14·2 answers
  • Please help with this
    5·1 answer
  • 4. (03.06 MC)
    10·1 answer
  • Help thanks ASAP ASAP
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!