Solve the equation.3 + y = 30
A. 90
B. 33
C. 25
D. 27
Answer: D
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Find the general form of the equation for the line with the given properties.Slope = 
; y-intercept = 
A. 2x + 5y = -6
B. y = 
x + 
C. y = 
x - 
D. 2x - 5y = -6
Approximate the area under the graph of f(x) and above the x-axis using n rectangles.f(x) = 3x2 - 2 from x = 1 to x = 5; n = 4; compute R4
A. 154 B. 144 C. 150 D. 140
Starting in the year 2000, the number of crimes committed each year in Middletown is predicted to grow according to a linear growth model. During the year 2000, Middletown recorded 2 crimes (P0 = 2). During the year 2001, Middletown recorded 6 crimes (P1 = 6).According to the model, how many crimes are likely to be committed in Middletown during 2002?
A. 18 B. 12 C. 24 D. 10 E. none of these
Why does the computer meet the need in the following activity? ? Teaching a person to solve quadratic equations. ?
A. tutorial B. doesn't need a computer C. repetition D. easy to correct E. all of these choices