This question makes no sense what so ever...add a picture and I can help me throughly
Answer:
a. 30
Step-by-step explanation:
(f.f) = f(f(x))
Given: f(x) = x^2 -x
Now replace x = x^2 -x in f(x), we get
(f.f) = f((x^2 - x)^2 - (x^2 - x))
= (x^2 - x) (x^2 - x) -x^2 + x
= x^4 -x^3 - x^3 + x^2 - x^2 + x
= x^4 -2x^3 + x
Now plug in x = 3
f.f(3) = 3^4 -2(3)^3 + (3)
= 81 - 2*27 + 3
= 81 -54 + 3
f.f(3) = 84 -54
(f.f)(3) = 30
Thank you.
Answer:
20
Step-by-step explanation:
Step 1: 4 = 20% × Y
Step 2: 4 = 20/100 × Y
Multiplying both sides by 100 and dividing both sides of the equation by 20 we will arrive at:
Step 3: Y = 4 × 100/20
Step 4:Y = 4 × 100 ÷ 20
Step 5: Y = 20
Answer:
I think A is the correct answer
Step-by-step explanation:
The angle would be 64 degrees
