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Questions in Grade College

[Free] Holly finds that $(11 m-13 n+6 m n)-(10 m-7 n+3 m n)=m-20 n+9 m n$. What error did Holly make? A. She only used the additive inverse of 10 m when combining like terms. B. She added the polynomials instead of subtracting. C. She only used the additive inverses of $-7 n$ and $3 m n$ when combining like terms. D. She did not combine all like terms.

[Free] Let $A=\{c, a, t\}, B=\{f, l, y\}$. Find $A \times B$ and $B \times A$. $A \times B=\square$ (Type an ordered pair. Use a comma to separate answers as needed.)

[Free] Select the correct answer. Which expression simplifies to $2 \sqrt{15}$ ? A. $\sqrt{17}$ B. $\sqrt{19}$ C. $\sqrt{30}$ D. $\sqrt{60}$

[Free] What is the solution to the inequality $|(3x+4)/2| - 5 \geq 8$?

[Free] What are the zeros of the graphed function $y=\frac{1}{3}(x+3)(x+5)$? -5 and -3 5 and 3 -8 and 5 0 and 5

[Free] Which best describes the effect of the repetition of the word "I" throughout "What to the Slave is the Fourth of July?" A. It makes Douglass seem self-involved and convinced of his own importance. B. It reinforces the sense of personal importance the issue has for Douglass. C. It reminds readers that Douglass has a strong sense of individuality. D. It establishes Douglass's personality clearly in readers' minds.

[Free] When you talk with a victim of bullying, you should encourage them to take responsibility for whatever they did that made the bully want to be mean to them. A. True B. False

[Free] After a vertical reflection across the $x$-axis, $f(x)$ is A. -f(-x) B. f(x-1) C. -f(x) D. f(-x)

[Free] The graph of [tex]f(x)=|x|[/tex] is transformed to [tex]g(x)=|x+1|-7[/tex]. On which interval is the function decreasing? A. [tex](-\infty,-7)[/tex] B. [tex](-\infty,-1)[/tex] C. [tex](-\infty, 1)[/tex] D. [tex](-\infty, 7)[/tex]

[Free] Use synthetic division to solve $(x^3+1) \div(x-1)$. What is the quotient? A. $x^2+x+1+\frac{2}{x+1}$ B. $x^2-x+1$ C. $x^2+x+1+\frac{2}{x-1}$ D. $x^3-x^2+x$