Find the square root. When necessary, round to nearest thousandth.
A. 3.752
B. 3.742
C. 3.741
D. 4.742
Answer: B
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As part of a statistics project, a 6th grade teacher brings to class a container with 200 red marbles and 800 white marbles which are thoroughly mixed. To figure out how many marbles in the container are red without actually counting them all, a student randomly draws 150 marbles from the container. Of the 150 marbles drawn, 33 are red.The data collection method can best be described as
A. a controlled study. B. a census. C. a clinical study. D. a survey. E. none of these
Write the number without exponents.8.441 × 10-5
A. 0.00008441 B. 0.0008441 C. -844,100 D. 0.000008441
Solve the problem.An electrician charges a fee of $60 plus $45 per hour. Let y be the cost in dollars of using the electrician for x hours. Find the slope-intercept form of the equation.
A. y = 60x + 45 B. y = 45x - 60 C. y = 45x + 60 D. y = 60x - 45
Write the number in scientific notation.0.000421
A. 4.21 × 10-3 B. 4.21 × 10-4 C. 4.21 × 10-5 D. 4.21 × 104