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
chubhunter [2.5K]
2 years ago
5

Verify the identity. cos 4x + cos 2x = 2 - 2 sin^2(2x) - 2 sin^2 x

Mathematics
1 answer:
Advocard [28]2 years ago
8 0
So are you trying to simplify one side to get it to look like the other?
You might be interested in
144 ft squared to square yards?
Iteru [2.4K]
144 feet is 16 yards^2
8 0
3 years ago
Arnold deposited $732.19 in a savings account that earns 2.7% simple interest. What is Arnold's account balance after seven year
liq [111]

Answer:

Step-by-step explanation:

$870.57

use equation total = Principal(1 + rate*time)

3 0
2 years ago
A certain forest covers an area of 4300 km2 . suppose that each year this area decreases by 3.25% . what will the area be after
Gemiola [76]
A =P(1-3.25%)⁸

A= 3,301.23 km²
7 0
2 years ago
Your friend earns $10.50 per hour this is 125% of her hourly wage last year how much did your friend make last year
NNADVOKAT [17]
10.50/5=2.10
2.10*4=8.40
She used to earn $8.50/hr
3 0
3 years ago
The polygons are similar. The area of one polygon is given. Find the area of the other polygon.
Fantom [35]

Answer:

108 ft²

Step-by-step explanation:

For the polygon on the left, we are given the length of one side (3 ft) and the total area (27 ft²). With this information, we can determine the length of the other side - 9 ft. I found this by dividing 27 ft² by 3 ft, giving me the final result of 9 ft.

Next, we have to find the other side of the polygon on the <em>right</em> so we can ultimately determine its area. It looks like there is a scale factor of 2 between the two polygons, since 3 × 2 = 6. We know that the bottom side of the left polygon is 9, so multiplying 9 by 2 should give us the bottom side of the polygon on the right. 9 × 2 = 18.

Now, we have the side lengths for the polygon on the right and can determine its area. What is 6 ft × 18 ft? Well, the answer is 107 ft², and this is the answer to the question.

Hopefully that's helpful! :)

5 0
2 years ago
Other questions:
  • How do I solve the Question​
    10·2 answers
  • Henry and 28 classmates are going to the roller skating rink. each van can hold 11 students . If all of the van are full except
    15·2 answers
  • What is 865 divided by 40
    15·1 answer
  • Jamie is three times as old as his brother nick. Nick is twice as old as his sister nadia. Nadia is exactly 4 years old. How man
    10·1 answer
  • Can someone please help? I need to get this doe so I can do something important
    9·1 answer
  • Directions on photo tyy! &lt;3
    11·1 answer
  • What are the answers to theseeeeee??
    10·1 answer
  • When you have finished, use your Whisper voice to read each number out loud in both
    13·2 answers
  • If x is a negative number, what is always true about the solution to the problem -8 + x? explain
    9·1 answer
  • Dilson is going to toss two number cubes each with faces labeled.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!