Answer:
it would be D
Step-by-step explanation:
all other choices have a repeating x value.
Answer:
6.5 seconds
Step-by-step explanation:
Keep in mind that when 
, this is the same height for both when the model rocket takes off and lands, so when the rocket lands, time is positive. Thus:
So, the amount of seconds that the model rocket stayed above the ground since it left the platform is 6.5 seconds
Add 3, multiply by 3, and take the positive square root.
3 = (1/3)x²
9 = x²
√9 = 3 = x
The positive solution to the equation is x = 3.
Answer:
B, D, E, F.
Step-by-step explanation:
In the statement, the square of an even integer is even. From the options provided, we have to select the ones that provide similar ways of expressing this.
Options B, D, E, F provided with the question and reproduced below convey the same statement in different ways:
B: Given any integer whose square is even, that integer is itself even.;
D: Any integer with an even square is even.;
E: If the square of an integer is even, then that integer is even and
F: All even integers have even squares.
