Answer: the lower the price the more people want to come to the baseball game.
Step-by-step explanation:
Answer:
(x, y) = (6, -7)
Step-by-step explanation:
Assuming you want to solve the equations for x and y, you can divide the second equation by 2 to get
x -2y = 20
then add 2y to obtain an expression for x:
x = 20 +2y
Substituting this into the first equation gives ...
5(20 +2y) +3y = 9
100 +13y = 9 . . . . . . eliminate parentheses, collect terms
13y = -91 . . . . . . . . . .subtract 100
y = -7 . . . . . . . . . . . . .divide by 13
Using this in our expression for x, we find ...
x = 20 +2(-7) = 6
The solution is (x, y) = (6, -7).
A = pi (r)^2, so first you have to find the radius. The radius = 18.5 since its diameter/2. So if you plug it in, its A = pi (18.5)^2 and your answer would be A = 1075.21. Hope I helped :))
Let X be the number of cell phone minutes used by high school seniors.
X follows Normal distribution with mean μ = 500 and standard deviation σ =50.
The probability that students uses between 400 and 500 minutes is
P(400 < X < 500) =
= P( -2 < Z < 0)
= P(Z < 0) - P(Z < -2)
= 0.5 - 0.0228
P(400 < X < 500) = 0.4772
The probability that student uses between 400 and 500 minutes is 0.4772