Solve the problem.Police use the formula s = S 
, where S is the test-car speed and L is the test-skid length, to find the actual speed s in an accident which left a skid mark of length l. Simplify the expression S 
by rationalizing the denominator.
A. 
B. 
C. 
D. S 
Answer: C
Mathematics
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Solve the equation.44 = -4q
A. q = -48 B. q = -11 C. q = 1 D. q = 48
Mathematics
Write the phrase as a mathematical expression. Use x as the variable.A number multiplied by 5, added to -5, subtracted from 6 times the sum of 6 times the number and 7
A. 6(6x + 7) - [5x + (-5)] B. 5x - 5 + 6(6 + 7x) C. 5(-5 + x) + 6(6x + 7) D. 5(-5 + x) + 6(6 + 7x)
Mathematics
Write the expression in terms of sine and cosine, and simplify so that no quotients appear in the final expression.sin2 x + sin2 x cot2 x
A. cot2 x + 1 B. cot2 x - 1 C. 1 D. sin2 x + 1
Mathematics
Solve by the quadratic formula. Simplify answers. Use i notation for nonreal complex numbers.4x2 + 12x + 6 = 0
A. x = 
B. x = 
C. x = 
D. x = 
Mathematics