For the given equation, find the values of a, b, and c, determine the direction in which the parabola opens, an determine the y-intercept. Decide which table best illustrates these values for the equation: y=x^2+7x
Table A
b
7
up or down
up
1
y-intercept
(0,0)
0
Table B
a
b
IN
up or down
up
y-intercept
(0,0)
1
0
Table C
a
b
С
up or down
y-intercept
(0,0)
7
1
0
down
Table D
b
С
y-intercept
up or down
HA

Amachine that produces a special type of transistor (a component of computers) has a 2% defective rate. the production is considered a random process where each transistor is independent of the others. (a) what is the probability that the 10th transistor produced is the first with a defect? (b) what is the probability that the machine produces no defective transistors in a batch of 100? (c) on average, how many transistors would you expect to be produced before the first with a defect? what is the standard deviation? (d) another machine that also produces transistors has a 5% defective rate where each transistor is produced independent of the others. on average how many transistors would you expect to be produced with this machine before the first with a defect? what is the standard deviation? (e) based on your answers to parts (c) and (d), how does increasing the probability of an event a↵ect the mean and standard deviation of the wait time until success?

Eric drove 275 miles in 5 hours. at the same rate how long would it take him to drive 495 miles?

In september, louise planted a tree. every month, the tree louise planted grew 2 inches. what would the constant of proportionality of the line be?