Answer:
A) y=3cos(-x)
Step-by-step explanation:
Because the amplitude of the graph is 3, this eliminates options C and D as their amplitudes are different. With the period of the graph being 2π, B cannot be correct because that would have a period of π/2. Therefore, A is correct.
Answer:
D. 2.5
Step-by-step explanation:
use a calculator or long division. :)
Answer:
Step-by-step explanation:
The diameter is 70 ml
The radius is worth half the diameter, which means that the radius is 35 ml
A = pi r squared
A = 3.14 x 1225
A = 3846.45
Answer:
X days
Step-by-step explanation:
1/X work is done in 1 day
1 (same) work is done in 1÷ 1/X
= 1*X/1
therefore, = X
Answer:
-33
Step-by-step explanation:
27-(-3)=30
-3-30=-33