Y = x+3
y = 2x+5
x+3 = 2x+5
x+8 = 2x
x = 8
I think I did that right, anyway.
Answer:
120
Step-by-step explanation:
80 is 2/3 of Drew's book
80 divided by 2 is 40
divided by 2 to find 1/3 of the book
40 * 3 = 120
3 is the whole
120 is the total amount of pages in the book
Assuming you mean f(t) = g(t) × h(t), notice that
f(t) = g(t) × h(t) = cos(t) sin(t) = 1/2 sin(2t)
Then the difference quotient of f is
Recall the angle sum identity for sine:
sin(x + y) = sin(x) cos(y) + cos(x) sin(y)
Then we can write the difference quotient as
or
(As a bonus, notice that as h approaches 0, we have (cos(2h) - 1)/(2h) → 0 and sin(2h)/(2h) → 1, so we recover the derivative of f(t) as cos(2t).)
For the problem the Answer is ST