Express the interval in set-builder notation and graph the interval on a number line.[-3, 7]
A. {x 
}
B. {x 
}
C. {x 
}
D. {x 
}
Answer: B
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Divide.-30 ÷ 
A. 18 B. -18 C. 6 D. 50
Use a Venn diagram to answer the question.At East Zone University (EZU) there are 784 students taking College Algebra or Calculus. 315 are taking College Algebra, 509 are taking Calculus, and 40 are taking both College Algebra and Calculus. How many are taking Algebra but not Calculus?
A. 744 B. 275 C. 469 D. 235
Use a graphing calculator to find the sum.
Round your answer to three decimal places.
A. 1.333 B. -1.667 C. -0.667 D. 4.000
Solve the problem.A surveyor is measuring the distance across a small lake. He has set up his transit on one side of the lake 130 feet from a piling that is directly across from a pier on the other side of the lake. From his transit, the angle between the piling and the pier is 60°. What is the distance between the piling and the pier to the nearest foot?
A. 225 feet B. 65 feet C. 75 feet D. 113 feet