The sum of \(8 n^2 - 3n + 10\) and \(3n^2 - 6n - 7\) is
Answer
\[ 5 n^2 - 9n + 3\]
\[5n^2 - 3n - 17\]
\[-11n^2 - 9n - 17\]
\[-11n^2 - 3n + 3\]
Question 2
Question
Noj is 5 years older than Jacob. The product of their ages is 84. How old is Noj?
Answer
6
7
12
14
Question 3
Question
What is the slope of a line represented by the equation \(2y = x - 4\)?
Answer
1
\(\frac{1}{2}\)
-1
\(-\frac{1}{2}\)
Question 4
Question
When \(16x^3 - 12 x^2+ 4x\) is divided by 4x, the quotient is
Answer
\[12 s^2 - 8x\]
\[12x^2 - 8x + 1\]
\[4x^2 - 3x\]
\[ 4x^2 - 3x + 1\]
Question 5
Question
Which fraction represents \(\frac{x^2-25}{x^2-2-20}\) expressed in its simplest form?
Answer
\(\frac{4}{5}\)
\(\frac{x-5}{x-4}\)
\(\frac{x+5}{x+4}\)
\(\frac{25}{x+20}\)
Question 6
Question
When x = 4, the value of \(2 x^0 + x!\) is
Answer
24
25
26
28
Question 7
Question
Jonathan drove to the airport to pick up his friend. A rainstorm forced him to drive at an average speed of 45 mph, reaching the airport in 3 hours. He drove back home at an average speed of 55 mph. How long, to the nearest tenth of an hour, did the trip home take him?
Answer
2.0 hours
2.5 hours
2.8 hours
3.7 hours
Question 8
Question
If the area of a rectangle is represented by \(x^2+ 8x+15\) and its length is represented by \(x+ 5\), which expression represents the width of the rectangle?
Answer
\(x+ 3\)
\(x- 3\)
\(x^2+ 6x+5\)
\(x^2+ 7x+10\)
Question 9
Question
Which interval notation represents \(-3 \leq x \leq 3\)?
Answer
\([-3, 3]\)
\((-3, 3]\)
\([-3, 3)\)
\((-3, 3)\)
Question 10
Question
Which equation represents a line parallel to the line whose equation is \(2x + 3y = 9\)?