Answer:
The purchase value at the 30th percentile=34.24
Step-by-step explanation:
We are given that
Mean,
Standard deviation,
We have to find the purchase value at the 30th percentile.
Where Z is the critical value of x% confidence interval
x=30
Critical value of Z at 30% confidence interval=-0.5244
Using the formula
30th percentile=
30th percentile=
30th percentile
Hence, the purchase value at the 30th percentile=34.24
The angle is in the 3rd quadrant so you subtract 180° from it giving you 23°
Answer:
Step-by-step explanation:
Answer: ⇒
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Step-by-step explanation:
First you had to add by 2 from both sides of equation.
Simplify.
Then you had to subtract by 2x from both sides of equation.
Simplify.
Multiply by -1 from both sides of equation. (it's going to be reverse by the inequality).
Simplify it's should be the right answer.
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