Use ZERO (or ROOT) to approximate the smaller of the two x-intercepts of the equation. Express the answer rounded to two decimal places.y = x2 + 5x + 1
A. -4.79
B. 0.21
C. 4.79
D. -0.21
Answer: A
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Factor as completely as possible. If unfactorable, indicate that the polynomial is prime.10x2 + 23x + 12
A. prime B. (10x + 3)(x + 4) C. (2x + 3)(5x + 4) D. (2x - 3)(5x - 4)
Solve.A company has 63,000 employees. Of these, 
drive alone to work, 
car pool, 
use public transportation, 
cycle, and the remainder use other methods of transportation. How many employees use each method of transportation?
A. Drive alone: 2,100; car pool: 10,500; public transportation: 9,000; cycle: 7,000; 
B. Drive alone: 21,000; car pool: 10,500; public transportation: 9,000; cycle: 7,000; 
C. Drive alone: 21,100; car pool: 10,500; public transportation: 8,900; cycle: 7,000; other: 1000
D. Drive alone: 21,000; car pool: 10,500; public transportation: 9,000; cycle: 7,000; 
Convert the number to scientific notation.0.000016313
A. 1.6313 × 105 B. 1.6313 × 10-5 C. 1.6313 × 10-4 D. 1.6313 × 104
Solve.An equation used in the study of Class C amplifiers is R = 
,where R is the internal resistance of the tube and ? is the angle that indicates the portion of the cycle during which the current is allowed to flow. Find the value of R when ? is 57°. Round to the thousandths place.
A. 5.839 B. 0.2714 C. 0.0556 D. 0.3464