Answer:
D
Step-by-step explanation:
using Sohcahtoa we know that we can only use Soh (since we have the opposite,16 and the hypotenuse, 20)
D is the only one that uses the correct equation of S = o/h
(this explanation isn't the best so please search up Sohcahtoa if it doesn't make sense)
The function is odd if you can replace every x with -x and get the oposite equation
example
if you replace x with -x in y=x^3, then you get -x^3, so therefor the functin is odd
so
replace x with -x
a. we get x^3+4, nope
b. we get -2x^3, yep
c. we get x^4-9, nope
d. we get x^4-4x, nope
answer is B
Answer:
The area of the parallelogram is 20cm²
Answer:
((√2)/2, -(√2)/2)
Step-by-step explanation:
The coordinates of the point on the unit circle for any angle θ are ...
... (x, y) = (cos(θ), sin(θ))
For the angle -π/4, the coordinates are ...
... (cos(-π/4), sin(-π/4)) = ((√2)/2, -(√2)/2)
