Answer:
$42.60
Step-by-step explanation:
The tax will be $2.60!
Hope this helped!
Answer:
This is my second time answering one of your questions, chill out, just learn.
-46
Step-by-step explanation:
-46+17=-29
Answer:
7425 inches^2
Step-by-step explanation:
825 inches (length) multiplied by 9 inches (width) to get 7,425 inches^2, squared because we are dealing with area.
Answer:
Step-by-step explanation:
All the costs mentioned here are before tax
Let cost of junior bacon cheese burger be
Cost of large fries be
Heather's order cost 12.50
Sarah's order cost 13.70
Multiply by
Subtracting the equations we get
Cost of large fries is
Cost of junior bacon cheeseburger before tax is .
Answer:
Step-by-step explanation:
Hello!
The variable of interest is
X: the amount a 10-11-year-old spends on a trip to the mall.
Assuming that the variable has a normal distribution, you have to construct a 98% CI for the average of the amount spent by the 10-11 year-olds on one trip to the mall.
For this you have to use a Student-t for one sample:
X[bar] ± *
n= 6
$18.31, $25.09, $26.96, $26.54, $21.84, $21.46
∑X= 140.20
∑X²= 3333.49
X[bar]= ∑X/n= 140.20/6= 23.37
S²= 1/(n-1)*[∑X²-(∑X)²/n]= 1/5[3333.49-(140.2)²/6]= 11.50
S= 3.39
X[bar] ± *
[23.37 ± 3.365 * ]
[18.66;29.98]
With a confidence level of 98%, you'd expect that the interval $[18.66;29.98] will include the population mean of the money spent by 10-11 year-olds in one trip to the mall.
I hope you have a SUPER day!