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Questions in Grade College

📝 Answered - An equation was created for the line of best fit from the actual enrollment data. It was used to predict the dance studio enrollment values shown in the table below: | Enrollment | January | February | March | April | May | June | |---|---|---|---|---|---|---| | Actual | 500 | 400 | 550 | 550 | 750 | 400 | | Predicted | 410 | 450 | 650 | 650 | 600 | 450 | | Residual | 90 | -50 | -100 | -100 | 150 | -50 | Analyze the data. Determine whether the equation that produced the predicted values represents a good line of best fit. A. No, the equation is not a good fit because the sum of the residuals is a large number. B. No, the equation is not a good fit because the residuals are all far from zero. C. Yes, the equation is a good fit because the residuals are not all far from zero. D. Yes, the equation is a good fit because the sum of the residuals is a small number.

📝 Answered - The loudness, [tex]$L$[/tex], measured in decibels (Db), of a sound intensity, [tex]$I$[/tex], measured in watts per square meter, is defined as [tex]$L=10 \log \frac{l}{I_0}$[/tex], where [tex]$l_0=10^{-12}$[/tex] and is the least intense sound a human ear can hear. Jessica is listening to soft music at a sound intensity level of [tex]$10^{-9}$[/tex] on her computer while she does her homework. Braylee is completing her homework while listening to very loud music at a sound intensity level of [tex]$10^{-3}$[/tex] on her headphones. How many times louder is Braylee's music than Jessica's? A. [tex]$\frac{1}{3}$[/tex] times louder B. 3 times louder C. 30 times louder D. 90 times louder

📝 Answered - What is a stop-loss provision? A. A provision where a provider agrees to only bill a patient up to a maximum amount. B. A provision that provides protection to a provider for medical expenses that exceed certain levels. C. A provision where a provider agrees to only bill an insurer up to a maximum amount. D. A provision where a provider agrees to accept patients that will not exceed a certain level of expenses.

📝 Answered - What does it mean to say that a data point has a residual of 1? A. The point lies 1 unit below the regression line. B. The point lies 1 unit above the regression line. C. The point lies directly on the regression line. D. The x-coordinate of the point is 1.

📝 Answered - If the normal force increases, what happens to the force of friction, assuming all other factors remain constant? A. It decreases B. It remains the same C. It increases D. It becomes zero

📝 Answered - $y \geq x^2+2$ use $0=x$ $0=y$ What is the $x$-intercept? What is the $y$-intercept?

📝 Answered - Solve the system of equations. Type in all points of intersection for the two functions and round to the nearest tenth if necessary. [tex] \begin{array}{l} f(x)=-0.5 x+2 \\ g(x)=x^3-5 x^2+3 \end{array} [/tex]

📝 Answered - $3 \div \frac{2}{7}$

📝 Answered - As you take a bite from an apple, you are mainly using which movement of the mandible? A. Depression and elevation B. Eversion and inversion C. Dorsiflexion and plantar flexion D. Abduction and adduction

📝 Answered - Find all real solutions. (Enter your answers as comma-separated lists. If there is no real solution, enter NO REALSOLUTION.) [tex] \begin{array}{l} 2 x^2+4 x+1=0 \\ x=? \end{array} [/tex]