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Questions in Grade College

[Jawaban] Select the correct answer. In this reaction, what effect does a change in the concentration of substances have on the reverse reaction rate? [tex]CaCO_3(s) \rightleftharpoons CaO(g)+CO_2(g)[/tex] A. The rate of the reverse reaction increases with an increase in the concentration of [tex]CaCO _3(s)[/tex]. B. The rate of the reverse reaction increases with an increase in the concentration of [tex]CaO (g)[/tex] and [tex]CO _2(g)[/tex]. C. The rate of the reverse reaction decreases with a decrease in the concentration of [tex]CaCO _3(s)[/tex]. D. The rate of the reverse reaction decreases with an increase in the concentration of [tex]CaO (g)[/tex] and [tex]CO _2(g)[/tex] E. The rate of the reverse reaction increases with a decrease in the concentration of [tex]CaO (g)[/tex] and [tex]CO _2(g)[/tex].

[Jawaban] The volume of a rectangular prism box can be represented by the function [tex]$V(x)=2 x^3-5 x^2-3 x$[/tex]. If the height of the box is [tex]$x cm$[/tex], which of the following could represent the length and width of the container? A. [tex]$2 x+1$[/tex] and [tex]$x+3$[/tex] B. [tex]$2 x+1$[/tex] and [tex]$x-3$[/tex] C. [tex]$2 x-1$[/tex] and [tex]$x+3$[/tex] D. [tex]$2 x-1$[/tex] and [tex]$x-3$[/tex]

[Jawaban] The graph of the function $f(x)=-(x+1)^2$ is shown. Use the dropdown menus to describe the key aspects of the function. The vertex is the $\square$ The function is positive $\square$ The function is decreasing $\square$ The domain of the function is $\square$ The range of the function is $\square$

[Jawaban] Suppose you invest $[tex]$7000[/tex] in an account that earns [tex]$7 %[/tex] simple interest annually. Use this information to complete the table below. Round to the nearest cent as needed. | Year | Starting Balance | Interest | Ending Balance | |---|---|---|---| | 1 | $7000 | $490 | $7490 | | 2 | $7490 | $ | $ | | 3 | $ | $ | $8470 | | 4 | $8470 | $ | $ | | 5 | $ | $490 | $ |

[Jawaban] An electric device delivers a current of [tex]$15.0 A$[/tex] for 30 seconds. How many electrons flow through it?

[Jawaban] Find the quotient of 1.25 divided by 0.25

[Jawaban] An electric device delivers a current of [tex]$15.0 A$[/tex] for 30 seconds. How many electrons flow through it?

[Jawaban] The graph of [tex]y=4 sin (x+3)-2[/tex] is obtained by shifting the graph of [tex]y=4 sin x-2[/tex] horizontally 3 units to the right. A. True B. False

[Jawaban] An electric device delivers a current of [tex]$15.0 A$[/tex] for 30 seconds. How many electrons flow through it?

[Jawaban] Which of the following components must a life insurance policy have to allow policy loans? A. Face amount B. Dividends C. Cash Value D. Flexible Premiums