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Questions in Grade College

[Free] The step function $g(x)$ is defined as shown. $g(x)=\left\{\begin{array}{ll} -3, & x \leq 0 \\ 2, & 0 5, & 4 \end{array}\right.$ What is the range of $g(x)$ ? A. $-3 \leq g(x) \leq 5$ B. $0 \leq g(x) \leq 10$ C. $\{-3,2,5\}$ D. $\{0,4,10\}$

[Free] Simplify: $4 x-2(4 x-2)$

[Free] Why are many scientists dependent on the government for funding? A. Scientists have no other source of money. B. Scientists can do only the research the government will pay for. C. The government is in control of all public research. D. Research is often too expensive to do without the government's help.

[Free] Which of the following is the solution of the equation [tex]$3 x+4=19$[/tex]? Use substitution to identify the correct answer. [tex]$x=5$[/tex] [tex]$x=4$[/tex] [tex]$x=6$[/tex] [tex]$x=3$[/tex]

[Free] Evaluate $(-1)^8+(-1)^7-1^6-1^4-(-1)^2$. Pay attention to the placement of the parentheses and negative signs. A) -3 B) -23 C) 5 D) -4

[Free] It is an attitude that judges people based on their imagined characteristics. A. discrimination B. prejudice C. bias D. racism

[Free] If [tex]U_1=2[/tex] and [tex]U_n=U_{n-1}+n+3[/tex], for [tex]n \geq 2[/tex], find the values of [tex]U_2[/tex], [tex]U_3[/tex] and [tex]U_4[/tex].

[Free] Is voicemail exactly the same as an answering machine, but it is made for business calls? True False Skip

[Free] Juno is taking a taxi. The table represents a linear function and shows the amount she owed after various numbers of miles traveled. Is the rate of change 2.25? | Miles | Amount Owed (dollars) | | ----- | ----------------------- | | 1 | 2.5 | | 2 | 4.75 | | 3 | 7 | | 4 | 9.25 | | 5 | 11.5 | A. Yes, because the amount owed changes by 1 every time the miles change by 2.25. B. Yes, because the amount owed changes by 2.25 every time the miles change by 1. C. No, because the amount owed does not change by 1 every time the miles change by 2.25. D. No, because the amount owed does not change by 2.25 every time the miles change by 1.

[Free] Select the correct answer. Which of the following is the inverse of [tex]$f(x)=\frac{3-x}{5}$[/tex]? A. [tex]$f^{-1}(x)=5 x-3$[/tex] B. [tex]$f^{-1}(x)=\frac{5+x}{3}$[/tex] C. [tex]$f^{-1}(x)=3-\frac{x}{5}$[/tex] D. [tex]$f^{-1}(x)=3-5 x$[/tex]