is your final answer.
If x=4cos(2t) and y=4sin(2t), what is the parameter of these equations
1 answer:
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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,
Answer:
a(+
) = = -13
Step-by-step explanation:
Given that a = -1, b=2 and c= -3
find the value of a(+
)
Just substitute the values given for each variable
a(+
) = (-1)(
+
) ; do the exponents first
a(+
) = (-1)(4+9)=(-1)(13) ; now add inside the parenthesis;
a(+
) = -13 ; and multiply by -1