If y varies directly with x and y = 87 when x = 3, find y when x = 5. Write and solve a direct variation equation to find the an
1 answer:
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Answer:
y=2x-5
Step-by-step explanation:
, and m=2
, -(-5)-Two negatives make it positive, and you distribute the 2
, you now subtract 5 to get y by itself to get your answer of
*NOTE* (0,-5) is the y-intercept, so you could have used the linear equation of y=mx+b, m=2, and b(y-intercept)=-5
giving you y=2x-5
Answer:
The null hypothesis is
Step-by-step explanation:
According to the Centers for Disease Control and Prevention, the proportion of U.S. adults age 25 or older who smoke is .22
This means that at the null hypothesis, it is tested if the proportion is in fact 0.22, that is:
A researcher suspects that the rate is lower among U.S. adults 25 or older who have a bachelor's degree or higher education level.
At the alternative hypothesis, it is tested if the proportion is lower than 0.22, that is: