Answer:
Unit Rate
Step-by-step explanation:
Answer:
a) 0.8413
b) 421
c)
Step-by-step explanation:
We are given the following information in the question:
Mean, μ = 165
Standard Deviation, σ = 15
We are given that the distribution of IQ examination scores is a bell shaped distribution that is a normal distribution.
Formula:
a) P(IQ scores at most 180)
P(x < 180)
Calculation the value from standard normal z table, we have,
b) Number of the members of the club have IQ scores at most 180
n = 500
c) P(X< x) = 0.95
We have to find the value of x such that the probability is 0.95
Calculation the value from standard normal z table, we have,
The statement is true. The number is seven. I can find this through the commutative property of addition or plugging in the number and reversing the equation.
Key: a is 7, b is square root of five, c is solution, ? is what we're finding
Commutative: a + b = b + a
Plugging and Reversing: a + ? = c, c - a = b
I think it's D bc I looked it up in internet and it's what It gave me
Answer:
Option A.
Step-by-step explanation:
step 1
we know that
The equation of the solid line is
The solution is the shaded area above the solid line
so
The equation of the first inequality is
step 2
The equation of the dashed line is
The solution is the shaded area above the dashed line
so
The equation of the second inequality is
therefore
The system of inequalities could be