A horizontal line test would show that the equation is a relation but not a function (C)
Answer:
The statement represents the IDENTITY PROPERTY OF ADDITION.
Step-by-step explanation:
Here, the given expression is 8 + 0 = 8
IDENTITY ELEMENT : Identity element is a special type of element in a given set of system, such that any number remains UNALTERED if operated with the identity element.
⇒ a + X = X for, a ≡ IDENTITY ELEMENT
Now, 8 + 0 = 8
Comparing it with the above equation , we get
0 ≡ IDENTITY ELEMENT in the given Binary operation of Addition.
Hence, the statement represent the IDENTITY PROPERTY OF ADDITION.
Answer:
36
Step-by-step explanation:
The variance of one human is σ² = 36 days. Each gestation time for each human of the sample is independant of the other.
Both variance and mean of the sum of identically distributed indipendant random variables is equivalent to the product of the variance/mean of one element of the sample by the sample length.
Therefore, if we take the sum n of random variables with variance 36, then the variance of the sum will be 36*n. The sampling distribution is obtained from the sum by dividing by n. If we divide by a number, then the variance will be divided by its square. So the variance of the sampling distribution is 36*n/n² = 36/n, and the standard deviation is 6/√n days.
If we want the sampling distribution to have standard deviation equal to 1 day, then we need n such that
This shows that the sample length should be 36.
So hmm check the picture below
using the 45-45-90 rule.. notice what "x" is, or the bottom side
so.. .what would it be for the hypotenuse then?
Answer:
14.6
Step-by-step explanation: