Write the number in standard form.4(cos 90° + i sin 90°)
A. -4
B. 4
C. 4i
D. -4i
Answer: C
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Let p represent a true statement and let q represent a false statement. Find the truth value of the given compound statement.~[~p ? (~q ? p)]
A. False B. True
Determine whether the relation represents a function. If it is a function, state the domain and range.{(41, -3), (5, -2), (5, 0), (9, 2), (21, 4)}
A. function domain: {-3, -2, 0, 2, 4} range: {41, 9, 5, 21} B. function domain: {41, 9, 5, 21} range: {-3, -2, 0, 2, 4} C. not a function
Solve the problem.Jon has 791 points in his math class. He must have 72% of the 1200 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. 73 points B. 864 points C. 409 points D. 570 points
Solve the problem.A straight trail with a uniform inclination of 13° leads from a lodge at an elevation of 900 feet to a mountain lake at an elevation of 8900 feet. What is the length of the trail (to the nearest foot)?
A. 9134 feet B. 35,563 feet C. 8210 feet D. 39,564 feet