Answer:
8
Step-by-step explanation:
40 + 5 (at the door)=45
(president's goal) 400 divided by 45= approximately 8
a. The construct the expression for the area of the rectangle in terms of x is y=2.5x
b. The area should be 2,560.
Given that,
- the length of a rectangular house is two and a half times its width.
Based on the above information, the calculation is as follows:
a) The expression should be y = 2.5x
b) The area should be
= 2560
Learn more: brainly.com/question/1301963?referrer=searchResults
Answer:
294
Step-by-step explanation:
100%-> 700
42%->294
![\bf f(x)=0.35x^2-2.1x+15.8\qquad \begin{cases} x=\textit{year since 1995}\\ f(x)=\textit{population amount} \end{cases}](https://tex.z-dn.net/?f=%5Cbf%20f%28x%29%3D0.35x%5E2-2.1x%2B15.8%5Cqquad%20%0A%5Cbegin%7Bcases%7D%0Ax%3D%5Ctextit%7Byear%20since%201995%7D%5C%5C%0Af%28x%29%3D%5Ctextit%7Bpopulation%20amount%7D%0A%5Cend%7Bcases%7D)
the equation is a quadratic one, and it has a positive coefficient on the leading term, meaning, is opening upwards, so it has a "burrow" for the vertex.
the minimum or lowest point for a quadratic opening upwards is, well, the vertex point :), the "x" value is the year, the "y" or f(x) value is the population, we're asked for the year, or the x-coordinate of the vertex
well
Answer:
I believe it's the second option!
Step-by-step explanation:
Please correct me if I'm wrong!