Answer:
ok i dnt know but
Step-by-step explanation:
go to https://mathsolver.microsoft.com/en/solve-problem/2%20%60left(%20y-3%20%60cdot%20%204%20%20%60right) if it dnt work try a calculator
The approximate original price of the car is $23032
<h3>How to determine the original price?</h3>
The given parameters are:
Rate, r = 8%
Price at 4 years old = 16,500
An exponential function is represented as:
y = a(1 - r)^x
Where a represents the initial value
This gives
y = a(1 - 8%)^x
Evaluate
y = a(0.92)^x
At 4 years old, we have:
16500 = a(0.92)^4
Divide both sides by (0.92)^4
a = 23032
Hence, the approximate original price of the car is $23032
Read more about exponential function at:
brainly.com/question/11464095
#SPJ1
Answer:
95% confidence interval for the difference between the average mass of eggs in small and large nest is between a lower limit of 0.81 and an upper limit of 2.39.
Step-by-step explanation:
Confidence interval is given by mean +/- margin of error (E)
Eggs from small nest
Sample size (n1) = 60
Mean = 37.2
Sample variance = 24.7
Eggs from large nest
Sample size (n2) = 159
Mean = 35.6
Sample variance = 39
Pooled variance = [(60-1)24.7 + (159-1)39] ÷ (60+159-2) = 7619.3 ÷ 217 = 35.11
Standard deviation = sqrt(pooled variance) = sqrt(35.11) = 5.93
Difference in mean = 37.2 - 35.6 = 1.6
Degree of freedom = n1+n2 - 2 = 60+159-2 = 217
Confidence level = 95%
Critical value (t) corresponding to 217 degrees of freedom and 95% confidence level is 1.97132
E = t×sd/√(n1+n2) = 1.97132×5.93/√219 = 0.79
Lower limit = mean - E = 1.6 - 0.79 = 0.81
Upper limit = mean + E = 1.6 + 0.79 = 2.39
95% confidence interval for the difference in average mass is (0.81, 2.39)
Answer: (6,0)
Step-by-step explanation:
Find the 2 different rates at which the farm worker worked:
3 pints
--------- = 0.75 pint/min
4 min
2 pints
---------- = 0.67 pint/ min
3 min
Then you need to subtract 0.67 pint/min from 0.75 pint/min to answer this question.
Alternatively, subtract 2/3 pint/min from 3/4 pint/min.
