What's a proportion that can be used to find out how many points a student needs to reach 78 percent on a 50 point quiz?
1 answer:
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Answer:
The function is negative for all real values of x where -6< x < -2
Step-by-step explanation:
Given f(x) = (x + 2)(x + 6)
The graph of the function is as shown in the attached figure.
As shown, we can deduce the following:
The function is positive for all real values of x where x > -2 and x < -6
The function is zero at x = -2 and x = -6
The function is negative for all real values of x where -6 < x <-2
Compare the observations to the given statements:
So, The true statement is The function is negative for all real values of x where -6 < x <-2
Answer:
Approximately 7.3%.
Step-by-step explanation:
What is percentage increase?
.
For this question:
,
, and
needs to be found.
Let .
.
Assume that . Multiply both sides of the equation by
:
.
Add to both sides of the equation:
.
.
In other words, the initial percentage is approximately 7.3%.