Estimate the sum or difference by rounding each number to the nearest ten.84 - 18
A. 70
B. 60
C. 100
D. 66
Answer: B
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Indicate whether the statement is true or false.When graphing a system of two linear inequalities, the final shaded region is made up of all points which belong to the graphs of either of the individual inequalities.
A. True B. False
Find the indicated probability. Round as indicated.Find the probability of at least 2 girls in 7 births. Assume that male and female births are equally likely and that the births are independent events. Estimate the probability to three decimal places if necessary.
A. 0.164 B. 0.773 C. 0.938 D. 0.063
Determine the slope and the x- and y-intercepts of the line.x = 5
A. Undefined slope No y-intercept x-intercept is (5, 0) B. Slope is 0 y-intercept is (0, 5) No x-intercept C. Undefined slope No y-intercept x-intercept is (0, 5) D. Slope is 0 y-intercept is (5, 0) No x-intercept
Solve the problem.Persons taking a 30-hour review course to prepare for a standardized exam average a score of 620 on that exam. Persons taking a 70-hour review course average a score of 741. Find a linear equation which fits this data.
A. y = 2.7225x + 533.25 B. y = -3.025x + 529.25 C. y = 2.7225x - 533.25 D. y = 3.025x + 529.25