Answer:
c. 18.36-21.64
Step-by-step explanation:
Using the following formulas the lower and upper limits of the interval are calculated
Lower limit = mean - (standard deviation /√sample size)* Zr
Upper limit = mean + (standard deviation /√sample size)* Zr
Zr depends on confidence interval
Zr for 90% = 1.645
then
Lower limit = 20 - (4 /√16)* 1.645 = 18.355 ≈ 18.36
Upper limit = 20 + (4 /√16)* 1.645 = 21.645 ≈ 21.64
Answer:
Food B has fewer calories.
Step-by-step explanation:
To find the unit rate we had to transfer both to have the denominator. To do that we have to find a common denominator both 4 and 3 have. The common denominator is 12. We then use 12 as a denominator and solve. (Sorry I don't really know how to explain.)
Food A=
12 ÷ 4 is 3, 3 × 3 = 9.
9/12
Food B=
12 ÷ 3 = 4, 4 × 2 = 8.
8/12
photomath !!! It actually works!!! It helped me pass my classes 1
Answer:
the answer to your question is D
Step-by-step explanation:
the image is dilated by 1/2 then rotated 180 degrees about the origin
Answer:
50 Degrees
Step-by-step explanation:
They are parallel because, so 5, 8, 4, and 1 are all 50 degrees, and the angle is 180. That means the other sides angle is 130 degrees. 7, 6, 2, and 3 are 130 degrees
