Answer:The number is -1.5
Step-by-step explanation:
The answer is -1.5 because if you can't use a number less than -1.5 or greater than -1.5 than the answer should be -1.5.
Answer:
0.62 = 0.62 × 100/100 = (0.62 × 100)/100 = 62/100 = 62%;
In other words:
1) Multiply that number by 100.
2) Add the percent sign % to it.
Answer: P(x > - 0.23) = 0.41
Step-by-step explanation:
Since we are assuming that the readings at freezing on a batch of thermometers are normally distributed, we would apply the formula for normal distribution which is expressed as
z = (x - µ)/σ
Where
x = the readings at freezing on a batch of thermometers.
µ = mean temperature reading
σ = standard deviation
From the information given,
µ = 0°C
σ = 1.00°C
the probability of obtaining a reading less than -0.23°C is expressed as
P(x > - 0.23)
For x = - 0.23
z = (- 0.23 - 0)/1 = - 0.23
Looking at the normal distribution table, the probability corresponding to the z score is 0.41
4x +8y=64
subtract 8y on both sides
4x=-8y +64
divide by 4 both sides with all #
x=-2y+16
Answer:
About 3.73 yrs
Step-by-step explanation:
This is a compound decay problem. Which has the formula:
Where
F is the future amount (we want it to be 2000)
P is the present amount (which is 4600)
r is the rate of decay, depreciation (20% per year means 20/100 = 0.2)
t is the time in years (which we want to find)
Substituting, we find:
Now we take natural log (Ln) of both sides and solve:
So, it will take about 3.73 years for the value to depreciate to $2000
