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
Eduardwww [97]
3 years ago
15

Click through to find the correct identity.

Mathematics
1 answer:
Aleksandr [31]3 years ago
6 0

Answer:

b.

Step-by-step explanation:

cos2θ =  2 cos^2 θ - 1

2cos^2 θ = 1 + cos2θ

cos^2 θ = (1 + cos2θ)/2

You might be interested in
What are the Factors of -18
postnew [5]
The factors of -18 are 1, 2, 3, 6, 9, 18 and their negative counterparts :)
7 0
3 years ago
Find the diagonal of a square whose sides are of the given measure. Given = 6sqrt2
jeyben [28]

Answer:

=12 units

Step-by-step explanation:

When a square is cut along one diagonal, it forms a right angled triangle whose legs are the sides of the square and the hypotenuse is the diagonal of the square.

Therefore, the Pythagoras theorem is used to find the hypotenuse.

a² + b² = c²

(6√2)²+(6√2)²=c²

72+72=c²

c²=144

c=√144

=12

The diagonals of the square measure 12 units each.

 

6 0
4 years ago
1) $400 interest is earned on a principal of $2,000 at a simple interest rate of 5%
Kitty [74]

Answer:

4 years

Step-by-step explanation:

I = $ 400

R = 5%

P =$ 2000

I = Prt

400 = 2000 * \frac{5}{100} * t

400 = 20 * 5 * t

400 = 100 t

\frac{400}{100}=t

t = 4 years

3 0
3 years ago
What is the third term of the sequence defined by the recursive rule f(1)=3 f(n)=f(n-1)+4
snow_tiger [21]
What is the third term of the sequence defined by the recursive rule f(1)=3 f(n)=f(n-1)+4

Need f(2):

f(2)=f(2-1)+4
f(2)=f(1)+4
f(2)=(3)+4=7

FIND f(3):
f(3)=f(3-1)+4
f(3)=f(2)+4
f(3)=(7)+4
f(3)=11
5 0
3 years ago
Determine intervals y= -x^3 + 3x^2 -2
motikmotik

Answer:

(2,2) and (0,-2)

Step-by-step explanation:

Use the website desmos for questions like graphing

3 0
3 years ago
Other questions:
  • How to find the slope of a parabola at a given point?
    5·1 answer
  • The solution to -2(1-4x)=3x+8 is____?
    15·1 answer
  • The space inside a circle is the _ of the circle.
    13·2 answers
  • What time is 10 minutes before 4:00 p.m.
    15·2 answers
  • Identify the number of molecules in the chemical formula for Butane.
    13·2 answers
  • What is the quotient of 8,595 ÷ 24?
    7·2 answers
  • Account has been hac ked what do i do????
    8·1 answer
  • Please help! i’ve been stuck on this question for the longest.
    12·2 answers
  • In triangle XYZ, what is m∠XZY?
    9·2 answers
  • Help me please.
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!