Answer:
The 95% confidence interval is 
.
Step-by-step explanation:
The information provided is:
The critical value for 95% confidence level is:
Compute the margin of error as follows:
Then the 95% confidence interval is:
Thus, the 95% confidence interval is .
Answer: 345.4
Step-by-step explanation:
SA=2πr^2+2πrh
SA=2(3.14)(5)^2+2(3.14)(5)(6)
SA=2(3.14)(25)+2(3.14)(30)
SA=2(78.5)+2(94.2)
SA=157+188.4
SA=345.4
Answer:
C. Positive 6
Step-by-step explanation:
Answer:
468.75 = Volume B
Step-by-step explanation:
The volume of two similar figures is related to the scale factor by cube
Volume A
----------------- = scale factor ^3
Volume B
30 2^3
-------------- = ---------
Volume B 5^3
Using cross products
30 * 125 = 8 Volume B
3750 = 8 Volume B
Divide by 8
3750/8 = Volume B
468.75 = Volume B
PEMDAS. You do parentheses first, then exponents, the multiplication and division, the adding subtracting.
55 + a (y x 6) - 9
So you distribute a to y and 6 — 55 + ay x 6a -9
Subtract 9 from 55 — 46 + ay x 6a
Multiply ay and 6a (because they both have a) __ 46 + 6ay
That’s your answer.
I hope this helped!
