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
Tanzania [10]
3 years ago
7

If cosx=-3/7, find the value for cos4x

Mathematics
1 answer:
charle [14.2K]3 years ago
6 0

Answer:

cos ( 4 x ) = - 479 / 2401

Step-by-step explanation:

:D

You might be interested in
2 friends go out to lunch and order 1 large pizza.The friends divided the pizza evenly.Find how much pizza each friend got as a
lions [1.4K]
Does It Say How Much Slices There Are ?
5 0
3 years ago
Read 2 more answers
Can you help me please!!!!
Alexeev081 [22]

Answer:

Step-by-step explanation:

(-10,0)(0,-4)

find slope

m=-2/5

b=-4

y=-2/5x-4

4 0
3 years ago
Read 2 more answers
Anna would like to purchase a new bike that costs $205. She already has $31 saved. If she saves a maximum of $12 a week, the fol
Dmitrij [34]

Answer:

It will take at least 15 weeks

Step-by-step explanation:

12w+31 ≥ 205

Subtract 31 from each side

12w+31-31 ≥ 205-31

12w ≥ 174

Divide each side by 12

12w/12 ≥ 174/12

w ≥ 14.5

Rounding up to the nearest integer

w ≥ 15

It will take at least 15 weeks

5 0
3 years ago
Read 2 more answers
The area, a, of an ellipse can be determined using the formula a=TTxy where x and y are half the lengths of the largest and smal
Brilliant_brown [7]
a=\pi xy

To solve for y, divide both sides by \pi x:

y=\frac{a}{\pi x}

6 0
3 years ago
Read 2 more answers
8-2x=-8x+14<br><br><br> answer choices <br> x=-1<br> x=-3/5<br> x=3/5<br> x=1
navik [9.2K]
Hello there!

8 - 2x = -8x + 14

Let's start by subtracting 8 to both sides

8 - 2x - 8 = -8x + 14 - 8

-2x = -8x + 6

Let's add 8x to both sides

-2x + 8x = -8x + 6 +8x

6x = 6

Divide both sides by 6

6x/6 = 6/6

x = 1

The correct answer is option D

I hope this helps!
6 0
3 years ago
Read 2 more answers
Other questions:
  • How do you know if a problem is an arithmetic equation? and what does it look like on a graph?
    15·1 answer
  • Find an equation for the perpendicular Bisector of the line segment whose endpoints are (-9,-8) and (7,-4
    9·1 answer
  • Describe the solutions of 6+y &lt;10 in words
    6·1 answer
  • The population of a small town, P, as a function of time, t, in years past 1940 is given below.
    15·2 answers
  • What expression is equivalent to 24 ⋅ 2–7?
    11·1 answer
  • . Keisha and her mom are at the grocery store. Keisha's mom allows her to buy a 2 pound bag of candy. Keisha can choose gummy wo
    9·1 answer
  • The question is on the problem no links please I will give brainliest
    5·1 answer
  • ALL FELLOW PEOPLE I NEED HELP ASAP ! WILL MARK BRAINLIEST!!EXTRA POINTS !!!!
    5·1 answer
  • Can anyone help me with this ill mark brainliest:
    7·1 answer
  • Please explain this to me step by step. Thanks!
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!