Answer:
correct answer is option 3:
Step-by-step explanation:
Given that
Ellipse passes through coordinates:
Points inside ellipse (5, 0) and (-5,0).
Given the options:
Let us try to put the coordinates in the options and check which equation gets satisfied.
Putting x = 0, and trying to find out y in option 1.
But, the points are
So, option (1) is false.
Putting x = 0 to find y in option 2.
y will have imaginary values so ellipse not possible at x = 0.
So, option (2) is false.
Putting x = 0 to find y in option 3.
Putting y = 0 to find y in option 3.
So, the points are satisfied.
Putting (5, 0) and (-5,0) in LHS of option 3:
i.e. both the points are inside ellipse.
Hence correct answer is option 3:
Answer:
There is enough evidence at the 1% level of significance to suggest that the mean stopping distance of the truck is greater than 30
Step-by-step explanation:
We will conduct a hypothesis test for the mean. We will compare the mean stopping distance of the truck to the maximum distance of 30 and see if there is any significant difference.
We first need to find the mean and standard deviation of the stopping distance of the sample. See the first attached photo for the calculations of these values..
We get a sample mean of: 31.2333
and a sample standard deviation of: 0.2813
We will use these to conduct a hypothesis test. See the calculations for the test on the second attached photo
Answer:
Positive linear association
Step-by-step explanation:
As the time increases so does the points.
The rule of law of the square root of constants is taking the nearest divisible number which has a square root of an integer. since 25 taken to the power of 0.5 is equal to 5 or -5, the rule already applies. In this case, 2 multiplied to 5 is equal to choice E. 10.
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