Answer:
last test grade=x x ≥ 79 so 79%
Step-by-step explanation:
(84/5)+(88/5)+(95/5)+(104/5)+(x/5) ≥ 90
Simplify: (371/5)+(x/5) ≥ 90
Subtract (371/5) from both sides
Then you have (x/5) ≥ (79/5)
Then multiply both sides by 5 and you have x ≥ 79
P.S. If it was helpful please consider giving me brainliest. =)
If the ball hit the ground it means that its height is equal to 0. In order to find the time after the ball <span>will hit the ground, we need to find the solution of the equation h(x)=0 which is different to 0.
-4.9x^2+21.3x=0
x(-4.9x+21.3)=0
-4.9x+21.3=0
x=21.3/4.9 = 4.3469 seconds</span>
The answer is B.
Parallel lines as they are in the same plane but never meet.
Answer:
Y = Mx+C (General equation of a straight line)
Step-by-step explanation:
From the data given above, we could deduce that the data has two coefficients (X and Y). The numbers could be used to generate equation of a straight line.
E.g 2x+4 = 5y which is equivalent to
Mx+C = Y
Where C is the constant.
Answer:
Step-by-step explanation:
0.912 (C) is the probability that a student who saw an increase in their grade had studied