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
DIA [1.3K]
2 years ago
7

Cosx=4/5 what is sin2x cos2x and tan2x

Mathematics
1 answer:
earnstyle [38]2 years ago
4 0

Answer:

-24/5

Step-by-step explanation:

The solution to the problem is as follows:

cscx < 0 means 1/sinx < 0, or sinx < 0.  

sinx = -3/5 because you're dealing with a 3-4-5 triangle, and we established

sinx is negative.  

sin2x = 2sinxcosx = 2*-3/5*4/5 = -24/25  

cos(2x) = cos^2(x) - sin^2(x) = 16/25 - 9/25 = 5/25 = 1/5  

tan2x = sin2x / cos2x = -24/5

You might be interested in
Find the surface of the triangular prism
telo118 [61]

Answer:

174

Step-by-step explanation:

(5*3*2)+(9*3*2)+(5*9*2)

7 0
2 years ago
The cost of a catering prom is 250 plus $15 for each person attending. what is the cost of 150 people?
Anastasy [175]

Answer:

$2500

Step-by-step explanation:

First, multiply the $15 for the 150 people attending, to get 2250. Next, add the last $250 to get a total cost of $2500

Hopefully this helps- let me know if you have any questions!

4 0
3 years ago
Read 2 more answers
How do you divide 54,164 by 44 and show your work
sergejj [24]
To divide 54,164 by 44, we start from the first digit.

First we take the first 2 digits: i.e. 54 divided by 44, which gives 1 remainder 10.

Next, we join the next digit to the remainder and divide again by 44: i.e. 101 divided by 44, which gives 2 remainder 13.

Next, we join the next digit to the remainder and divide again by 44: i.e. 136 divided by 44, which gives 3 remainder 4.

Next, we join the next digit to the remainder and divide again by 44: i.e. 44 divided by 44, which gives 1.

We now joining all the results from our algorithm, to get that 54,164 divided by 44 is 1,231.
8 0
3 years ago
Am i correct ? geometry problem
MrRa [10]
Unfortunately your response would only be true if CD was perpendicular to AB. However we don't know if CD is perpendicular or not. So we don't have enough information. The actual answer is choice E) None of these.
3 0
3 years ago
How much will the taxi driver earn if he takes one passenger 4.8 miles and another passenger 7.3 miles? Explain your process.
Bezzdna [24]

Answer:

35.225 I believe

Step-by-step explanation:

You can always check on Slader.

4 0
3 years ago
Other questions:
  • What is an expression with a negative exponent that has a value between 0 and 1/2
    15·1 answer
  • A, b and c stand for three different numbers
    7·1 answer
  • Cindy has four more than five times as many cousins as Kathy, k. which expression represents 1how many cousins Cindy has compare
    8·2 answers
  • What is the value of the expression f2 + 8 if f = 7?
    7·2 answers
  • How many times greater is 1 kilogram than 1 microgram?
    6·2 answers
  • I need this help me please
    12·1 answer
  • Need help will mark brainliest
    6·1 answer
  • Help with supplementary angles ?​
    11·1 answer
  • A trap for insects is in the shape of a triangular prism. The area of the base is 45 in and the height of the
    6·1 answer
  • PLAN is a rectangle Its diagonals meet at O. Find the value of x if OP=2x+5 and OL=3x+2.​
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!