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Questions in Grade College

[Free] Select the best answer for the question. 1. Solve this equation: [tex]2 s+s+12=132[/tex]. A. [tex]s=120[/tex] B. [tex]s=9[/tex] C. [tex]s=-30[/tex] D. [tex]s=40[/tex]

[Free] The function below models the correlation between the number of hours a plant is kept in sunlight $(x)$ and the height $(y)$, in mm, to which it grows: $y=2+4x$ What does the $y$-intercept of this function represent? A. The original height of the plant was 4 mm. B. The original height of the plant was 2 mm. C. The height of the plant increases by 2 mm for every hour of sunlight it receives. D. The height of the plant increases by 4 mm for every hour of sunlight it receives.

[Free] Which of these best explains the next step to simplify this expression? [tex]\frac{3 y^{-4}}{5}=\frac{3}{5 y^{4}}[/tex] A. Multiply 5 by -4. B. Keep the exponent in the denominator -4. C. Make the -4 exponent in the denominator positive. D. Add 5 to -4.

[Free] If the predicted value when [tex]x=5[/tex] is [tex]\hat{y}=99.8[/tex] and the actual value at [tex]x=5[/tex] is measured to be [tex]y=98.9[/tex], find the value of the residual at this point. residual = [tex]\square[/tex] [?]

[Free] What type of number is 42? Select all that apply. A. counting number B. whole number C. integer D. none of these choices

[Free] Real wages finally began to rise in England in the 1830s because Select the best answer from the choices provided. A. inflation started rising rapidly B. too few factories were looking for too many workers D. too many factories were looking for too few workers

[Free] Have you heard about Lets Get Ranked?

[Free] Graduated payments result in the borrower paying: A. The mortgage at 1/2 the standard rate B. Less at the beginning of the mortgage C. Less at the end of the mortgage D. None of these

[Free] In a city with three high schools, all the ninth graders took a Standardized Test, with these results: | High School | Mean score on test | Number of ninth graders | | :------------ | :----------------- | :---------------------- | | Glenwood | 75 | 286 | | Central City | 94 | 323 | | Lincoln High | 65 | 164 | The city's PR manager, who never took statistics, claimed the mean score of all ninth graders in the city was 78. Of course, that is incorrect. What is the mean score for all ninth graders in the city? Round to one decimal place. mean of all ninth grader's scores = $\square$

[Free] Approximate the standard deviation for the following grouped frequency distribution table (GFDT): | Data | Frequency | | :------ | :-------- | | 40-44 | 1 | | 45-49 | 1 | | 50-54 | 2 | | 55-59 | 7 | | 60-64 | 5 | | 65-69 | 7 | | 70-74 | 15 | | 75-79 | 24 | | 80-84 | 10 | Sample standard deviation = $\square$ Enter an integer or decimal number. Round your answer to one decimal place.