Any relationship with a constant rate of change will graph a (line)
Answer:
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Step-by-step explanation:
zjjdisisnzhxuidnsnsiw782kehd8dbdhdiskbdidlwjzidknsjzidkdbxkdo
flipAnswer:
Multiplication
Step-by-step explanation:
The answer is multiplication because the multiplication by two will definetly flip the value of any sort of number that is non zero.
Answer:
- length 100 ft
- height 30 ft
Step-by-step explanation:
The center is 40 ft from the focus, so the wall is 40+10 = 50 ft from the center. From wall to wall must be 2×50 ft = 100 ft.
The length is 100 ft.
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Assuming the gallery has an elliptical vertical cross section, the distance from the focus to the center ceiling is the same as half the length of the gallery, so we can use the Pythagorean theorem to find the height:
50² = 40² + h²
h = √(2500 -1600) = √900 = 30
The height of the ceiling at the center is 30 feet.
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<em>Comment on the geometry</em>
We expect the gallery to have an elliptical floor plan, rather than an elliptical vertical cross section. In the latter case, the focus would have to be above the floor for it to work, so the ceiling at center would have to be higher than 30 ft. by the distance that the focus is above the floor.
Answer:
Step-by-step explanation:
Confidence interval is one which has centre as mean. The width of the interval would be 2 times margin of error.
Margin of error = Critical value * Std error/sq rt of sample
Hence if margin of error is lower for same n, then it means lower confidence level. Option a is right
Similarly, if bigger the sample size, lower is margin of error . Hence option b is right
c) False. Smaller samples make margin of error big and hence confidence intervals bigger.
d) If n becomes 9n, then margin of error becomes 1/3 Hence option d is right.