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Questions in Grade College

[Jawaban] Perform the indicated operation: [tex]7+\left(3^2+4^2\right)^2-150[/tex] [tex]\begin{array}{l} 7+(\square+\square)^2-150 \\ 7+(\square)-150 \\ 7+\square-150 \end{array}[/tex]

[Jawaban] Data seems to indicate that there is a negative correlation between years of education and unemployment rates. Which of the following describes what this means? A. As education increases unemployment increases. B. As education increases unemployment decreases. C. As education decreases unemployment decreases. D. None of the above.

[Jawaban] Which of the following choices is/are true about the following compounds: I. II. III. IV. a. the following is the correct order of decreasing reactivity toward HBr addition: III > II > IV>I b. all the above compounds are unsaturated hydrocarbons c. the following is the correct order of increasing reactivity toward HBr addition: I d. all the above compounds have the same reactivity toward HBr addition e. compound I does not undergo addition reaction under any condition

[Jawaban] Which type of reaction has the general formula of [tex]A B+C D \rightarrow A D+C B[/tex] ? synthesis decomposition oxidation replacement

[Jawaban] A function $f: N \rightarrow N$ is defined by $f(x)=x+3$. Is $f$ one-to-one and onto? What is the pre-image of 100?

[Jawaban] Solve by factoring or finding square roots. [tex](x+5)^2=36[/tex]

[Jawaban] Box $A$ has a volume of 48 cubic meters. Box $B$ is similar to Box A. To create Box B, Box A's dimensions were doubled. What is the volume of Box B? A. $24 m^3$ B. $96 m^3$ C. $288 m^3$ D. $384 m^3$

[Jawaban] A solid precipitate is formed from the reaction of lead nitrate and sodium chromate. What would be the best method to separate this solid from the solution? A. distillation B. evaporation C. filtration D. sorting

[Jawaban] Solve $b-2.7 \geq 5.24$. A) $b \leq 7.62$ B) $b \geq 7.81$ C) $b \leq 7.39$ D) $b \geq 7.94$

[Jawaban] Solve the equation [tex]$\sqrt[1]{5 x}-4=1$[/tex] A) [tex]$x=125$[/tex] B) [tex]$x=625$[/tex] C) [tex]$x=81 / 5$[/tex] D) [tex]$x=25$[/tex]