Answer:
0 <=t<=21
Step-by-step explanation:
Projectile is Moving upwards on an interval of (0 to 21), if we plot Velocity vs Time and denote positive y-axis above 0 and negative y-axis below 0(for velocity), then from 0 to 21 t projectile is moving upwards and has positive velocity, when the projectile reaches the top of it's motion and returns back down to ground it's velocity is negative and is plotted below the y =0 (note that is for t > 21).
hence for the interval 0 <=t <=21 the instantaneous velocity is positive (Note, instantaneous velocity is also the derivative of the velocity or the slope ).
Answer:
A and B
Step-by-step explanation:
A secant is a line which intersects a circle at 2 points
SU and RT both intersect the circle at 2 points and are secants
Answer: 15
Step-by-step explanation:
Just count the dots :)
Answer: 7 into 9
Step-by-step explanation:
Division is simply one of the four basic arithmetic operations, and the other operations are simply addition, subtraction, and then multiplication.
When When using long division to divide 912 by 7, the first step is to find how many times 7 goes into 9, which is 1 remainder 2. Then, the 2 is joined to the second number in 912 which is 1 making 21, then we've to find how many times 7 goes into 21 as well. We do thesame for the third number till we finally get our answer.
If you break up how many 300 go into 1050 it is about 3 1/2 laps so you just keep adding on untill they are both at numbers where both can meet so the faster runner would run about 3 1/2 more laps when they were both to meet at the starting line
