Answer:
49.5
Step-by-step explanation:
90% of 55 is 49.5
Equation of the linear graph is given by: (y - (-7))/(x - (-3)) = (-2 - (-7))/(2 - (-3)) (y + 7)/(x + 3) = (-2 + 7)/(2 + 3) = 5/5 = 1
y + 7 = x + 3
y = x - 4
Also, for the parabola: -(3)^2 + 2 = -9 + 2 = -7
Therefore solution is:
y = -x^2 + 2
y = x - 4
Answer:
0.7755
Step-by-step explanation:
If 120 CDs are defective, the number of non-defective CDs in the batch is:

In order for the batch to be accepted, all of the 4 CDs in the sample must not be defective, the probability of that happening is:

The probability that the entire batch will be accepted is 0.7755.
Step-by-step explanation:
No. of points got from 1 stunt = 50.
No. of points deducted from 1 fail = 40.
6 stunts and 9 falls were gained last week.
So, A/C the number of points earned =
(6×50)-(9×40)
= 300 - 360
= -60
Her score today is 3 times her score from last week so multiply by 3
= (-60) × 3
= -180
If it were multiplied by -3 instead of 3 it would be...
(-60) × (-3)
= 180
The difference would be that on multiplying with positive 3 she would be 180 points in the whole but multiplying with negative three means she is 180 points in the league.
The similarity is that that whole number is same but the symbol adds a difference and the absolute value would be same too.