Answer:
Option D) $275
Step-by-step explanation:
We are given the following information in the question:
Mean, μ = $235
Standard Deviation, σ = $20
We are given that the distribution of amount of money spent by students is a bell shaped distribution that is a normal distribution.
Formula:
We have to find the value of x such that the probability is 0.975
Calculation the value from standard normal z table, we have,
Approximately 97.5% of the students spent below $275 on textbook.
Answer:
No! The answer is not zero. There can be infinite solutions for this equation.
Hope it helps!
Answer:
2: D~ 30t + 2.75; $152.75
3: C~ 327.6 miles
Step-by-step explanation:
For 3 you have to find the unit (1) answer (306/8.5=36) then times that by the amount of units you need (9.1) therefore 36x9.1=327.6 and don’t forget to label!
hope his helps
A^3-b^3=(a-b)(a^2+ab+b^2)
a^3=64 b^3=27
a=4 b=3
Prove:
64-27=(4-3)(16+12+9)
= 37
Answer:7.8
Step-by-step explanation: