Answer: y = 3
Step-by-step explanation: y−3=2(x+1)
We know that x=-1 and we want to solve for y
Put in x=-1
y-3 = 2(-1+1)
y-3 = 2(0)
y-3=0
Add 3 to each side
y-3+3 = 0+3
y =3
Answer:
Step-by-step explanation:
3x - 6 + 2x + 108 + 88 = 360 Gather like terms
5x + 108 + 88 - 6 = 360
5x = 190 Divide by 5
x = 190/5
x = 38
1/5(100x - 105y + 70) = 20x -21y + 14
Answer: 0.9746
Step-by-step explanation:
Given : A normally distributed population has a mean of 250 pounds and a standard deviation of 10 pounds.
i.e.
Sample size : n= 20
Let sample mean values.
Then, the probability that this sample will have a mean value between 245 and 255 be
Hence , the probability that this sample will have a mean value between 245 and 255 is 0.9746 .
the formula of a circle is: x2 + y2 =
r2
substituting known values in the formula: x=7 and r=8
72 + y2 = 82
calculating for value of y:
y2=64-49
y=±√15
y=±3.9
since point A lies below the x-axis then
y=-3.9