Rewrite the quadratic function in intercept or factored form y=x^2+7x+10
1 answer:
Answer:
Step-by-step explanation:
1. You have the following the quadratic equation given in the problem above:
2. To factor the quadratic function, you must find two number that when you add them you obtain 7 and when you multiply them you obtain 10. These numbers would be 2 and 5.
3. Therefore, keeping this on mind, you can rewrite the function in the following intercept form:
You might be interested in
Answer:
14 students
Step-by-step explanation:
Given
Let:
read a book
watched TV
So, we have:
-- total
Required
Students that did both (x)
This is calculated using:
So, we have:
This gives:
Open brackets
Collect like terms
<em>Hence, 14 students did both</em>
Answer: B.
Step-by-step explanation:
Let be the proportion of all U.S. adults that smoked in 1995. Let
denote the proportion of all U.S. adults that smoked in 2000.
Objective for the study : Whether the proportion of U.S. adults that smoke declined during the 5-year period between the samples.
i.e.
Alternative hypothesis is the statement containing population parameter that shows there is significant difference between the groups being tested.
⇒
Null hypothesis is the statement containing population parameter that shows there is no significant difference between the groups being tested.
⇒
Hence, The hypotheses to test in this problem are
Hence, the correct answer is B.