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
Troyanec [42]
3 years ago
8

Can someone check this, please (I do report as needed and I do mark brainliest)? Thank you!

Mathematics
1 answer:
vodomira [7]3 years ago
7 0

Answer:

Step-by-step explanation:

cotx/cscx=cosx

Start on the left side.

cos(x)  csc(x)

Apply the reciprocal identity to  csc  (x)  .

cos(x)  1/sin(x)

Simplify  

cos(x)   1/sin(x)cos(x)/sin(x)

Rewrite  cos(x)/sin(x)  as  cot(x)  .

cot(x)

Because the two sides have been shown to be equivalent, the equation is an identity.

cos(x)   csc(x)=cot(x)  is an identity

cot(x)−tan(x)/sin(x)cos(x)=csc^2(x)−sec^2(x)  is an identity

You are correct :)

You might be interested in
1. What number is 35% of 80?<br>​
Stella [2.4K]

Answer: 28

Step-by-step explanation: 80 x 0.35 = 28

6 0
2 years ago
Read 2 more answers
-20 2 -6 -18 4 -4 put them from least to greatest
dedylja [7]
-20 -18 -6 -4 2 4 this is the answer
6 0
2 years ago
Read 2 more answers
A right cubic prism has edges of 2 1/2 inches. How
3241004551 [841]

Answer:

Option D, the volume is 15.625 cubes

Step-by-step explanation:

For a cube of side length L, the volume is:

V = L^3

for the smaller cubes, we know that each one has a side length of 1 in, then the volume of each small cube is:

v = (1in)^3 = 1 in^3

Then:

1 in^3 is equivalent to one small cube

Here we know that the side length of our cube is (2 + 1/2) in

Then the volume of this cube will be:

V = [ (2 + 1/2) in]^3

To simplify the calculation, we can write:

2 + 1/2 = 4/2 + 1/2 = 5/2

Then:

V = ( 5/2 in)^3 = (5^3)/(2^3) in^3 = 125/8 in^3 = 15.626 in^3

This means that 15.625 small cubes will fill the prism.

So the correct option is D.  

8 0
3 years ago
Please Help!!! I NEED THIS ASAP
Oksi-84 [34.3K]

person is si mis iosnmasabgoiuwgaufgafuawf

4 0
3 years ago
Consider the equation: 3(–4n – 9) = 21
hram777 [196]

Answer: N=-4

Step-by-step explanation:

STEP

1

:

STEP

2

:

Pulling out like terms

2.1     Pull out like factors :

  -4n - 9  =   -1 • (4n + 9)

Equation at the end of step

2

:

 -3 • (4n + 9) -  21  = 0

STEP

3

:

STEP

4

:

Pulling out like terms

4.1     Pull out like factors :

  -12n - 48  =   -12 • (n + 4)

Equation at the end of step

4

:

 -12 • (n + 4)  = 0

STEP

5

:

Equations which are never true:

5.1      Solve :    -12   =  0

This equation has no solution.

A a non-zero constant never equals zero.

Solving a Single Variable Equation:

5.2      Solve  :    n+4 = 0

Subtract  4  from both sides of the equation :

                     n = -4

One solution was found :

n = -4

7 0
2 years ago
Read 2 more answers
Other questions:
  • jana has 3 banana muffins, 3 poppy seed muffins, 3 spice muffins and 3 blurry muffins she put 1/2 of the muffins on a late how m
    5·1 answer
  • Your cell phone plan costs $39.99 per month plus $.15 for each text message you send or receive. You have at most $45 to spend o
    5·2 answers
  • The probability of a biased coin landing on heads is 0.35. if I flip the coin 200 times, how many times would the coin have land
    6·1 answer
  • Read and write the number in two other forms five hundred eight thousand
    5·1 answer
  • Order of operation for (-6) (4) (-2)
    9·2 answers
  • POSSIBLE POINTS: 28.57
    11·1 answer
  • Explain how to make these couculations mentally a. 99x6 b. 99x15
    8·2 answers
  • The exam will have true/false and short answer questions.
    8·1 answer
  • Line z has a slope of 2.5 and goes through point (4, 13). Which equation best represents line z?
    6·1 answer
  • Jamie can jog miles in 20 minutes. What is her average speed in miles per hour?
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!