14, 28 I think:) sorry if not
2cosx=2sin2x. Sin2x is an identity for 2sinxcos. So 2[2sinxcosx] gives you 4sinxcosx. 2cosx=4sinxcosx. Divide 2cosx on both sides and gives you 2sinx=0 and divide again, sinx=0. Sinx is 0 at 0 and 360 degrees, or pi and 2pi. So thats what x would be. 0,360,pi,2pi.
Answer:
3.58
Step-by-step explanation:
You must add up all of the numbers which will get you 17.9
Then divide 17.9 by the total amount of numbers (5) = 3.58
Step-by-step explanation:
The average speed is distance over time.
34 mi / 0.5 hr = 68 mph
Therefore, the driver must have been speeding at some point between the two toll booths.
Answer:
The possible coordinates of point A are 
and 
, respectively.
Step-by-step explanation:
From Analytical Geometry, we have the Equation of the Distance of a Line Segment between two points:
(1)
Where:
- Length of the line segment AB.
- x-coordinates of points A and B.
- y-coordinates of points A and B.
If we know that 
, 
, 
and 
, then the possible coordinates of point A is:
There are two possible solutions:
1) 
2) 
The possible coordinates of point A are and , respectively.
