Answer:
330
Step-by-step explanation:
<h3>
Answer: D) Two</h3>
You need the starting point, and another point that helps direct where the ray is aimed. Call these two points A and B.
Saying "Ray AB" means we extend a line through AB such that the line goes forever through B and beyond B, but we do not do the same for point A. The point A is effectively a cliff where no road goes on the other side of it. Check out the diagram below to see what I mean. The arrow means the line goes on forever in that direction.
Answer:
p = -
Step-by-step explanation:
- you have to simplify the left side of the problem first
- the 2 p's cancel each other out
- now you have to do order of operations
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction
1/3-1 = p
p= -
Answer:
0.72secs
Step-by-step explanation:
Given the height of the ball in air modeled by the equation:
h=−16t²+23t+4
Required
Total time it spent in the air
To get this we need to calculate its time at the maximum height
At the maximum height,
v = dh/dt = 0
-32t + 23 = 0
-32t = -23
t = 23/32
t = 0.72secs
<em>Hence the total time it spend in the air will be 0.72secs</em>