Answer:
The domain is (2,5,-3,0)
Step-by-step explanation:
we know that
For a set of ordered pairs, the first elements of each ordered pair represents the domain of the function and second elements of each ordered pair represents the range of the function.
The domain of a function is the set of all possible values of x
In this problem we have
![A= \ [(2,3), (5,1).(-3,-2), (0, 3)\ ]](https://tex.z-dn.net/?f=A%3D%20%5C%20%5B%282%2C3%29%2C%20%285%2C1%29.%28-3%2C-2%29%2C%20%280%2C%203%29%5C%20%5D)
therefore
The domain is (2,5,-3,0)
Answer:
H0: p = 0.078
Ha: p ≠ 0.078
Step-by-step explanation:
The researchers say that the rate is about 7.8%, or 0.078 as a decimal. That makes that the null hypothesis because using "is" in math is the same as saying "equals" and the null hypothesis always has the statement of equality in it. The reason there is a not equals to sign in the alternate is for this reason as well. The researchers say it is about that amount, not more or less than that amount. So it makes this a 2 tailed test. If the amount is significantly higher or lower, then we might have to reject the null hypothesis depending on the outcome of the test.
The answer is
B. 3 schools
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Hope This Helps!:)
