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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] Solve for the missing item in the following. Note: Do not round intermediate calculations. Round your answer to the nearest cent. | Principal | Interest rate | Time | Simple interest | | --------- | ------------- | ------ | --------------- | | | 6.50 % | 4 1/4 years | $ |

[Jawaban] Bananas cost $2 a bunch and apples cost $0.75.

[Jawaban] Read the passage and answer the question that follows. In a small town known for its delightful desserts, two friends, Rashina and Jake, sat at their favorite ice cream parlor, each savoring their own unique experience. Rashina, with a joyful smile, held her double-scoop cone of creamy chocolate and vanilla ice cream. She exclaimed, "Ice cream is the best dessert in the world! So many yummy flavors! Can't get any better than this!" On the other side of the table, Jake watched with a look of bemusement on his face he had chosen a refreshing fruit sorbet instead. He relished the coolness of the lemony tang, appreciating the vibrant flavors and colors. "Well, for you, maybe," Jake chuckled, raising his sorbet to the light. "But I much more prefer sorbet. It's light, refreshing, and I'm pretty sure it's healthier!" Despite their differing tastes, the two friends acknowledged the validity of each other's preferences. What conflicting perspectives are presented in the story? A. Rashina prefers ice cream and Jake prefers sorbet. B. Rashina prefers ice cream but Jake hates ice cream. C. Rashina and Jake share the same perspective. D. Rashina thinks ice cream is healthy and Jake disagrees.

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

[Jawaban] Why should you not make lifts when your back hurts? A. A painful back is a weaker back B. The pain will distract you C. Once it is injured, a back is easily re-injured D. Both A and C are correct.

[Jawaban] The main idea of a poem is also known as the A. type. B. meter. C. sound. D. subject.

[Jawaban] For what value of $a$ does $\left(\frac{1}{9}\right)^{a+1}=81^{a+1} \cdot 27^{2-a} ?$ A. -4 B. -2 C. 2 D. 6

[Jawaban] Select the best answer for the question. Sue has a balance of $35 in her checking account. She writes one check for $10, and three checks for $9 each. What is her balance now? A. $18 B. $54 C. -$2 D. -$11

[Jawaban] The same methods used to deal with finding the expected value, variance, and standard deviation of the sum/difference of two independent random variables may be extended to n independent random variables. If [tex]X _1, X _2, \ldots, X _{ n }[/tex] represent n independent random variables, then the expected value and standard deviation, respectively, of the n independent random variables are shown below. [tex]\begin{array}{l} E\left(X_1+X_2+\ldots+X_n\right)=E\left(X_1\right)+E\left(X_2\right)+\ldots+E\left(X_n\right) \\ \sigma_{X_1}+X_2+\ldots+X_n=\sqrt{\sigma_{X_1}^2+\sigma_{X_2}^2+\ldots+\sigma_{X_n}^2} \end{array}[/tex] The accompanying table summarizes the mean and standard deviation times (in seconds) of the four swimmers on Team Jax in the [tex]4 \times 100[/tex]-meter medley. Use this information to complete parts (a) and (b). Click the icon to view the mean and standard deviation times for Team Jax. (a) Determine the mean and standard deviation time to complete the race for Team Jax. The mean time to complete the race for Team Jax is 213.38 seconds. (Type an integer or decimal rounded to two decimal places as needed.) The standard deviation time to complete the race for Team Jax is 75 seconds. (Type an integer or decimal rounded to two decimal places as needed.) (b) A competing team recently had a winning time of 210.06 seconds. Assess the chances of Team Jax against this team. The chances of Team Jax winning are $\square$ because the competing team's time is $\square$ standard deviations from Team Jax's time, which is $\square$ Team Jax's time. (Type an integer or decimal rounded to two decimal places as needed.)