Answer:
-cos(2A)
Step-by-step explanation:
We know that (a+b) (a-b) = a^2-b^2
So it means we can simplify to sin^2(A)-cos^2(A) and we know cos^2(A) - sin^2(A) = cos(2A) but we will just multiply by -1 and we get - cos(2A)
Answer:
v= 1150.35 or v=143.79
Step-by-step explanation
if 6.5 is the radius then v= 1150.35 or if 3.25 is the radius then v=143.79
Answer:
500,400,300
Step-by-step explanation:
is this correct?
Answer:
slope= 3/2
y-intercept= -1/2
Step-by-step explanation:
The product of the gradients of 2 perpendicular lines is -1.
Substitute a coordinate into the equation.
When y=7, x=5,
It is parallel to the line y=2x-3, so first, we got
y=2x+b
and because it passes through (-3,1)
we got b=7
the equation is
y=2x+7
