Tell whether the statement is true or false.cos -23° = cos 40°cos 63° + sin 40°sin 63°
A. True
B. False
Answer: A
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You are driving and press on the brake to decrease your velocity. What can be said regarding your acceleration? ?
A. Acceleration is 0. B. Acceleration is positive. C. Acceleration is negative. D. Acceleration is increasing.
This frequency table gives the distribution of ages of 100 people in a small town. 
How many people are:10 years of age or older but less than 40 years of age
A. 51 B. 24 C. 65 D. 11
Factor completely. If the polynomial is prime, state this.25(x + 1)2 - 20(x + 1) + 4
A. (x + 1)(5x - 2)2 B. (5x + 3)(5x + 7) C. (5x + 3)2 D. (5x - 2)2
Find all points where the function has any relative extrema or saddle points and identify the type of relative extremum.x2 - y2 + 6xy
A. Relative minimum at (0, 0) B. Relative maximum at (0, 0) C. Saddle point at (0, 0) D. There are no relative extrema.