Solve the problem.Evaluate 
by expanding down the second column. Show all your work.A = 
What will be an ideal response?
Answers may vary. One possible solution follows.
= 5
+ 0
- 1
= 5(-9 + 8) + 0(-6 + 16) - 1(-4 + 12)
= 5(-1) + 0(10) - 1(8) = -13
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In the event of an emergency stop, the speed S, in miles per hour, of a car when brakes are applied can be calculated from the length L, in feet, of skid marks. The relationship is 
. Suppose skid marks are 67.40 feet long. Use functional notation to express the speed of the car, and then calculate that value.
?
A. 
miles per hour
B. 
miles per hour
C. 
miles per hour
D. 
miles per hour
Solve the problem.A survey of the 5085 vehicles on the campus of State University yielded the following circle graph. 
Find the number of convertibles. Round your result to the nearest whole number.
A. 814 B. 4271 C. 559 D. 16
Factor as completely as possible. If unfactorable, indicate that the polynomial is prime.4x2 + 8xt + 3t2
A. prime B. (4x + t)(x + 3t) C. (2x + t)(2x + 3t) D. (2x - t)(2x - 3t)
The given measurements may or may not determine a triangle. If not, then state that no triangle is formed. If a triangle is formed, then use the Law of Sines to solve the triangle, if it is possible, or state that the Law of Sines cannot be used.A = 42°, b = 12, B = 31°
A. The triangle cannot be solved with the Law of Sines. B. No triangle is formed. C. C = 107°, a ? 9.2, c ? 6.5 D. C = 107°, a ? 15.6, c ? 22.3