Answer:
1oz cost $0.39 which will be the unite rate
Step-by-step explanation:
Answer:
60 pieces
Step-by-step explanation:
The rate of pieces to packages is 15/1.
Multiply this rate by 4 to get the answer.
15 * 4 = 60
Answer:
2500+6% per year for 3 years would be 2950.
Answer: C. 541.60 hours
Step-by-step explanation:
Since the lifetime of a 2-volt non-rechargeable battery in constant use has a normal distribution, we would apply the formula for normal distribution which is expressed as
z = (x - µ)/σ
Where
x = lifetime of the batteries.
µ = mean lifetime
σ = standard deviation
From the information given,
µ = 516 hours
σ = 20 hours
Looking at the normal distribution table, the z score corresponding to ninety percent approximately is 1.28
Therefore,
1.28 = (x - 516)/20
Cross multiplying by 20, it becomes
20 × 1.28 = x - 516
25.6 = x - 516
x = 516 + 25.6
x = 541.6
Therefore, Ninety percent of all batteries have a lifetime less than
541.60 hours
<span>This exercise should show you that as h approaches zero
you get the value of the derivative of x^2 at x=1.
</span><span>the change in x^2) / h
h=1___
h=.1____
h=0.1_____
h=.001___
</span>
<span>change in x^2 = (1+h)^2 - 1^2 = (1+h)^2 - 1</span>
