Find the slope and the y-intercept.5x + y = 4
A. m = 5; (0, 4)
B. m = -5; (0, 4)
C. m = ;
D. m = - ;
Answer: B
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Plot the point.(1, 0)
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B.
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Data are given for y as a power function of x. Write an equation for the power function, and state its power and constant of variation.
A. y = ; Power = -4; constant of variation = 16
B. y = - ; Power = -2; constant of variation = -16
C. y = - ; Power = -1; constant of variation = -16
D. y = - 16x ; Power = 1; constant of variation = -16
The lengths of the sides of a triangle are given. Determine if the triangle is a right triangle. If it is, identify the hypotenuse.12, 16, 24
A. right triangle; 12 B. right triangle; 9 C. right triangle; 18 D. not a right triangle
The mean height of kindergartners at an elementary school is 44 inches with a standard deviation of 2 inches. If the heights are normally distributed, use this data to solve the problem. What percent of the kindergartners have a height between 40 and 44 inches?
A. 47.5% B. 95% C. 68% D. 49.85%