Answer:
60^1/2 = 60^0.5 = sqrt 60 = 7.75
good luck :))) <3
1 US dollar= 1.18 Canadian dollars
1 Canadian dollar= .85 US cents
$460 Canadian Dollars= $390.33 US Dollars
Answer: I.Q. of 130 will have a z score (or standard score) of 2.
Step-by-step explanation:
Let X be a random variable that represents the I.Q. score.
Formula for Z-score : 
As per given, mean I.Q. = 100 and the standard deviation =15
For X = 130,

So, I.Q. of 130 will have a z score (or standard score) of 2.
Answer:
x=-5
y=-2
Step-by-step explanation:
equation 1 - equation 2
(2x-4y=-2) - (2x+3y=-16) = (-7y=14)
y=14/-7=-2
then substitute y=-2 into any equation
2x-4(-2)=-2
2x+8=-2
2x=-10
x=-10/2=-5