Example
from pir^2 ro pi(2r)^2
pi(2r)^2=pi4r^2=4pir^2
basicaly we look for any no options and ones where second is 4 times first
B
pi2^2, if it is double, pi4^2
B
Answer:
The midpoint: -4
Step-by-step explanation:
To find the midpoint between two numbers, add them together and divide by 2.
-12 + 4 = -8
-8 ÷ 2 = -4
As one formula you can write this as:
∴ The midpoint is -4.
Answer: =1.34
Step-by-step explanation:
In standard density curve
P(Z<z) = Area left of z, P(Z>z) = area right of z.
P(Z<z) +P(Z>z) =1
Given: z is a standard normal random variable.
To find : value of z if rea to the right of z is 0.01.
i.e. P(Z>z) =0.01
P(Z<z) =1-0.01 = 0.09
from z-score table, z value for this is 1.34.
Hence, z= 1.34
If 2 inches represents 50 miles and 25 is half of 50, half of 2 is 1.
The line segment would be 1 inch.
