Determine whether or not the function is one-to-one.f(x) = 7x2 + x
A. Yes
B. No
Answer: B
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Find the length of the unknown side of the right triangle with sides a, b, and c, where c is the hypotenuse.a = 6, b = 8
A. 9 B. 7 C. 10 D. 5
Decide whether the statement is true or false.tan 28° > cot 28°
A. True B. False
Write the numbers in the order indicated.2.00949, 2.0949, and 2.000949 in descending order
A. 2.00949, 2.000949, 2.0949 B. 2.0949, 2.00949, 2.000949 C. 2.000949, 2.0949, 2.00949 D. 2.000949, 2.00949, 2.0949
Solve the problem.On the first four exams, your grades are 78, 94, 61, and 79. There is still a final exam, and it counts as two grades. You are hoping to earn a C in the course. This will occur if the average of your six exam grades is greater than or equal to 70 and less than 80. What range of grades on the final exam will result in earning a C?
A. [54, 84] B. [38, 88) C. [54, 84) D. [38, 88]