Answer:
False
Step-by-step explanation:
√(-9)^2=9
Solution is 9 not -9
Thus it is false
Answer:
D. 21/26
Step-by-step explanation:
Slope (<em>m</em>) = y2-y1/x2-x1
Input coordinates into formula:
m=5-(-16)/18-(-8)
m=21/26
Answer:
84.134%
Step-by-step explanation:
We solve this question using the z score formula.
The formula for calculating a z-score is z = (x-μ)/σ
where
x is the raw score
μ is the population mean
σ is the population standard deviation.
We are were asked in the question that:
Suppose that adult women in China have heights that are normally distributed with a
mean = 155 centimeters
standard deviation = 8 centimeters. Of the Chinese women, what percent are shorter than 163cm?
Using the z score formula
z = (x-μ)/σ
z = (163 - 155)/8
z = 8/8
z = 1
Determining the Probability value from Z-Table:
P(x ≤ 163) = P(x < 163)
= 0.84134
Converting to percentage
= 0.84134 × 100%
= 84.134%
The percent of Chinese women that are shorter than 163cm is 84.134%
Answer:
I don't know I'm sorry I will tell you another answer asks me to