Answer:
x = 5, y = 2
Step-by-step explanation:
just trust me, I used a calculator
Answer:
x^2 - 4x - 3 + 28/x+4
Step-by-step explanation:
Answer:
7m^2n (i think)
Step-by-step explanation:
Answer:
Step-by-step explanation:
(x-2)(x+4)=x^2+4x-2x-8=0=> x =2, x=0
Answer: 0.9192433
Step-by-step explanation:
Given : A nationwide study of American homeowners revealed that 65% have one or more lawn mowers.
i.e. Population proportion :
A lawn equipment manufacturer, located in Omaha, feels the estimate is too low for households in Omaha.
Then, his hypothesis will be :-
Since, the alternative hypothesis is left tailed , so the test is a left-tailed test.
Sample size : n= 497
The sample proportion of people ad one or more lawn mowers=
Test statistic for proportion :-
i.e.
Now, by using the standard normal table for z , we have
P-value (left tailed) =