Questions in Grade College

Questions in Grade College

[Jawaban] Determine the integral that can be used to find the arc length of the curve defined by the parametric equations [tex]x(t)=6 t^2-4 t+6[/tex] and [tex]y(t)=4 t^2+6 t+3[/tex] from [tex]1 \leq t \leq 9[/tex]. Provide your answer below: [tex]s=\sqrt{\square} \square dt[/tex]

[Jawaban] When approaching a tollbooth, you should expect A. sudden stops in traffic B. other vehicles making rapid lane changes C. all of the above D. none of the above

[Jawaban] If a vehicle is equipped with two drive motors, rated at 250 kW and 291 kW respectively, what is the total power rating for the vehicle? A. 41 kW B. 250 kW C. 291 kW D. 541 kW

[Jawaban] What point was Twain making about travel? A. Travel helps people understand the world around them. B. Travel is best appreciated by educated people. C. Travel makes people more closed-minded and less wholesome. D. Travel is expensive and useless for most people.

[Jawaban] HFC-134a has replaced which of the following in all MVAC systems? A. HFC-777 B. CFC-12 C. HFC-143a D. HFC-123a

[Jawaban] A survey was conducted at a high school to study pet ownership in different grade levels. The data gathered is in the two-way table below: | | Dog | Cat | No Pet | Total | | :-------- | :-- | :-- | :----- | :---- | | Freshman | 3 | 3 | 5 | 11 | | Sophomore | 5 | 7 | 4 | 16 | | Junior | 8 | 1 | 3 | 12 | | Senior | 2 | 3 | 6 | 11 | | Total | 18 | 14 | 18 | 50 | Based on this table, what is the relative frequency that a student is a sophomore who has a cat?

[Jawaban] Using the equation $y=\frac{2}{3} x-5$, describe how to create a system of linear equations with an infinite number of solutions.

[Jawaban] A sporting goods store uses quadratic equations to monitor the daily cost and profit for various items it sells. The store's daily profit, $y$, when soccer balls are sold at $x$ dollars each, is modeled by $y=-6 x^2+100 x-180$. Why is there an interval over which the graph decreases? A. If the store sells more soccer balls, they can decrease the price. B. If the soccer balls are returned for a refund, the store will lose money. C. If the soccer balls are too expensive, fewer will be sold, reducing profit.

[Jawaban] The supporting cells of capillaries are called:

[Jawaban] A crate required 900 newtons (N) of force to lift. The crate was lifted by a forklift with an engine that provided 225 N of force. What is the mechanical advantage of the forklift? A. 0.25 B. 4 C. 1,125 D. 202,500