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Questions in Grade College

[Free] Select the correct answer. What is the solution for $x$ in the equation? $-x+\frac{3}{7}=2 x-\frac{25}{7}$ A. $x=\frac{4}{3}$ B. $x=-\frac{4}{3}$ C. $x=\frac{3}{4}$ D. $x=-\frac{3}{4}$

[Free] Solve the quadratic equation using any method. Give exact answers - no decimals. [tex]3 t^2-t-1=0[/tex]

[Free] What is the solution to the equation $e^{3 x}=12$ ? Round your answer to the nearest hundredth. A. $x=0.83$ B. $x=1.09$ C. $x=2.48$ D. $x=7.44$

[Free] The table shows the percentages of hydrocarbons that are found in a sample of crude oil. | Hydrocarbons | Percentage | |---|---| | paraffins | 30 | | naphthenes | 49 | | aromatics | 15 | | asphaltics | 6.0 | Based on the given information, what is the best classification for this sample of crude oil? A. an element B. a pure compound C. a pure substance D. a mixture

[Free] Listen. Which pair of points has a slope of 4? A. (0,-3),(1,1) B. (0,4),(4,0) C. (1,4),(-1,4) D. (3,0),(-1,-1)

[Free] $(4 n^3 \cdot n^2)^2$

[Free] Find the LCD for the given rational expression. [tex]$\frac{x+9}{4 x^2}, \frac{x-5}{7 x^2+14 x}$[/tex]

[Free] The Texas club is sponsoring a bake sale. If their goal is to raise at least $450, how many pastries (P) must they sell at [tex]$9.00[/tex] each in order to meet that goal? A. [tex]$P \leq 50$[/tex] B. [tex]$P \geq 50$[/tex] C. [tex]$P \textless 50$[/tex] D. [tex]$P \textgreater 150$[/tex]

[Free] Without a calculator, evaluate $6 \cdot(-3)$

[Free] Select the best answer for the question. According to the Wall Street Journal, $14,200,000$ copies of Walt Disney's Fantasia have been sold to date. Write that number in scientific notation. A. $1.42=10^7$ B. $142 \times 10^7$ C. $142 \times 1,000,000$ D. $142 \times 10^{\circ}$