Solve the problem.A reflecting telescope contains a parabolic mirror. If the mirror is 24 inches across at its opening and is 4 feet deep, where will the light be concentrated?
A. 0.3 in. from the vertex
B. 0.8 in. from the vertex
C. 9 in. from the vertex
D. 0.7 in. from the vertex
Answer: B
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Solve the problem.Jon has 799 points in his math class. He must have 80% of the 1100 points possible by the end of the term to receive credit for the class. What is the minimum number of additional points he must earn by the end of the term to receive credit for the class?
A. 81 points B. 880 points C. 639 points D. 301 points
Use a day counting table to determine the due date of the loan if the loan is made on the given date for the given number of days.March 25 for 60 days
A. May 19 B. May 24 C. March 1 D. June 9
The polar coordinates of a point are given. Find the rectangular coordinates of the point.(7.7, 5.5) Round the rectangular coordinates to two decimal places.
A. (7.66, 0.74) B. (5.46, -5.43) C. (7.66, -0.74) D. (5.46, 5.43)