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Questions in Grade College

📝 Answered - Select the correct answer. Which function is increasing on the interval $(-\infty, \infty)$? A. $g(x)=-4\left(2^x\right)$ B. $j(x)=x^2+8 x+1$ C. $f(x)=-3 x+7$ D. $h(x)=2^x-1$

📝 Answered - Solve $3^{x+6}=3^4$.

📝 Answered - $0.2-\frac{4}{10}-1.625=\square$ Enter the answer as an exact decimal or simplified fraction.

📝 Answered - An oblique prism has a base area of $3 x^2$ square units. What expression represents the volume of the prism, in cubic units? $15 x^2$ $24 x^2$ $36 x^2$ $39 x^2

📝 Answered - Box A has a volume of 64 cubic meters. Box B is similar to box A. To create Box B, Box A's dimensions were divided by 2. What is the volume of Box [tex]$B$[/tex]? A. [tex]$128 m^3$[/tex] B. [tex]$8 m^3$[/tex] C. [tex]$32 m^3$[/tex] D. [tex]$16 m^3$[/tex]

📝 Answered - $y=x^2+4 x-2$ on $-3 \leq x \leq 2$

📝 Answered - Bruce walks $\frac{3}{4}$ mile in $\frac{1}{5}$ hour. What is his speed in miles per hour? Show your work.

📝 Answered - Ms. Sutton recorded the word counts and scores of the top ten essays in a timed writing contest. The table shows her data. [tex]\begin{table} \captionsetup{labelformat=empty} \caption{Winning Essay Length} \begin{tabular}{|c|c|c|c|c|c|c|c|c|c|c|} \hline \begin{tabular}{c} Essay \\ Rank \end{tabular} & 1 & 2 & 3 & 4 & 5 & 6 & 7 & 8 & 9 & 10 \\ \hline \begin{tabular}{c} Essay \\ Score \end{tabular} & 9.7 & 9.5 & 9.5 & 9.0 & 8.9 & 8.9 & 8.5 & 8.4 & 8.2 & 7.0 \\ \hline \begin{tabular}{c} Word \\ Count \end{tabular} & 324 & 352 & 337 & 318 & 299 & 304 & 290 & 291 & 278 & 250 \\ \hline \end{tabular} \end{table}[/tex] How does the word count of an essay relate to its score in the contest? A. Word count tends to decrease as the score decreases. B. Word count tends to increase as the score decreases. C. Word count tends to remain constant as the score decreases. D. Word count has no apparent relationship to the score of the essay.

📝 Answered - 24871 \times 1741 = ?

📝 Answered - Subtract: $4 w^2-\left(-15 w^2-15\right)$ Your answer should be in simplest terms.