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Questions in Grade College

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

[Jawaban] Factor $2 x^2+7 x-49$ A. $(x-7)(2 x-7)$ B. $(2 x+7)(x+7)$ C. $(x+7)(2 x-7)$ D. $(2 x+7)(x-7)$

[Jawaban] How did the development of spoken language most likely influence Stone Age hunting groups? A. It made it possible for them to follow animal herds farther. B. It helped them work together during the hunt. C. It permitted them to domesticate herd animals. D. It allowed them to develop future hunting plans.

[Jawaban] The book store is having a sale where all hardcover books are 20% off. Jamie also has a coupon for 15% off any fiction book. Jamie buys a hardcover fiction book that is priced $32.99. How much will Jamie save by buying the book on sale and using the coupon? a. $10.56 b. $11.55 c. $13.20 d. $19.79

[Jawaban] Playing soft, slow music in the spa area will enhance which of the following experiences? A. relaxation B. stimulation C. exhilaration D. invigoration

[Jawaban] Which keyword transfers control to another label? A. return B. switch C. goto D. call

[Jawaban] What are the first three terms in the sequence for $-2 n+5$? A. $-3,-1,1$ C. $3,1,-1$ B. $-2,1,4$ D. $2,-1,-4$

[Jawaban] Find the area between the parabola [tex]y=x^2-3[/tex] and the line [tex]y=x[/tex].

[Jawaban] Explain a company's corporate social responsibility when they find out a customer (spelled 'sibling' in the original question) has been stealing customers' credit cards for about three months.

[Jawaban] The derivation of the formula for the volume of a cone states that the volume of the cone is calculated to be [tex]$\frac{\pi}{4}$[/tex] times the volume of the pyramid that it fits inside. Which statement best describes where the [tex]$\frac{\pi}{4}$[/tex] comes from in the formula derivation? A. It is the ratio of the area of the square to the area of the circle from a cross section. B. It is the ratio of the area of the circle to the area of the square from a cross section. C. It is the difference of the area of the square and the area of the circle from a cross section. D. It is the sum of the area of the square and the area of the circle from a cross section.