The trick here is to not use sin and cos at all.
The -13/15 is the x coordinate of a line from the origin to the unit circle (the line with angle theta). That happens to be the cos(theta).
The y coordinate is the sin(theta).
You can draw this as a triangle where x^2 + y^2 = 1.
So y = √(1 - (13/15)^2) ≈ 0.49889. But your exact answer should be:
F(7) = -31
G(-2) = 18
Work:
They should leave $9.16
(10%=$4.58 x 2 = $9.16)
Answer:
0.8064
Step-by-step explanation:
0.112 × 7.2 = 8064 (this is before the decimals are added)
- move the decimal 4 spaces to the left because the two decimals provided are 4 spaces in total.
I hope this helps!!!
all you have to do is multiply how much money it costs by how many days it is on. I think.