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
jolli1 [7]
3 years ago
12

cos2x=____. Check all that apply. A. 1-2sin^2 x. B. 2sin^2 x-1. C. sin^2 x-cos^2 x. D. cos^2 x-sin^2 x

Mathematics
2 answers:
g100num [7]3 years ago
7 0
         cos 2 x = cos² x - sin² x = 1 - sin² x - sin² x = 1 - 2 sin² x.
         Answer: A ) 1 - sin² x and D ) cos² x - sin² x 
       
 Thank you.
Gnom [1K]3 years ago
3 0

Answer:

A & D

1-2sin^2x

cos^2x-sin^2x

Step-by-step explanation:

You might be interested in
Solve the division equation using the model. (1 point)
Nesterboy [21]

Answer:

3. 16

Explanation:

Factor the numerator and denominator and cancel the common factors.

5 0
3 years ago
Which equation can be used to find the length of ? (10)sin(40o) = AC (10)cos(40o) = AC = AC = AC
katovenus [111]
The complete question in the attached figure

we know that

sin40° = opposite side / hypotenuse
opposite side =AC
hypotenuse = AB-------> 10 in
so
sin 40=AC/AB---------> AC=AB*sin 40-------> AC=10*sin 40

the answer is
AC=10*sin 40

5 0
3 years ago
Read 2 more answers
Interpreting composite functions in the real world The volume of air in a balloon is represented by the function v(r)=4/3 ³, whe
adoni [48]

There are two <em>true</em> statements:

  1. When the function is composed with r, the <em>composite</em> function is V(t) = (1/48) · π · t⁶.
  2. V(r(6)) shows that the volume is 972π cubic inches after 6 seconds.

<h3>How to use composition between two function</h3>

Let be <em>f</em> and <em>g</em> two functions, there is a composition of <em>f</em> with respect to <em>g</em> when the domain of <em>f</em> is equal to the range of <em>g</em>. In this question, the <em>domain</em> variable of the function V(r) is replaced by substitution.

If we know that V(r) = (4/3) · π · r³ and r(t) = (1/4) · t², then the composite function is:

V(t) = (4/3) · π · [(1/4) · t²]³

V(t) = (4/3) · π · (1/64) · t⁶

V(t) = (1/48) · π · t⁶

There are two <em>true</em> statements:

  1. When the function is composed with r, the <em>composite</em> function is V(t) = (1/48) · π · t⁶.
  2. V(r(6)) shows that the volume is 972π cubic inches after 6 seconds.

To learn on composition between functions: brainly.com/question/12007574

#SPJ1

7 0
2 years ago
HELP ME ASAP PLEASE IM REALLY STRESSED :c
sveta [45]

Answer:

0.3 miles.

Step-by-step explanation:

If it takes all 3 of them to get there in a mile then it will equal to 3 miles.

5 0
3 years ago
Read 2 more answers
Which is a solution to the inequality y &gt; 2 + 9x? Select all that apply.
creativ13 [48]
I know that’s a should be one of them
4 0
3 years ago
Other questions:
  • Answer when you divide called
    8·1 answer
  • A hot bowl of soup cools according to Newtons law of cooling. Its temperature (in degrees Fahrenheit) at time t is given by T(t)
    14·1 answer
  • Write the function in function notation with the name "g":<br>y = 4b+ 5​
    10·1 answer
  • Derek is peeling potatoes for his large Scout Troop. He needs to peel a total of 85 potatoes. If he peels two potatoes in a minu
    10·1 answer
  • Perpendicular lines aretwo distinct coplaner lines that intersect to form what type of angle?
    12·1 answer
  • Given rectangle QRST, what is a logical first step to prove that the diagonals QS and RT are congruent?
    9·1 answer
  • Help with domain and range.
    11·1 answer
  • Solve for X. <br> picture attached (15 points)
    10·2 answers
  • What’s the slope? <br> 50 points!! Please help
    14·1 answer
  • Find the area of a square with sides of length 1/3 yard.
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!