Identify the degree and leading coefficient of the polynomial.f(x) = -19x4 - 7x3 + 2x2 + 9
A. Degree: 10; leading coefficient: -19
B. Degree: -19; leading coefficient: 2
C. Degree: 4; leading coefficient: -19
D. Degree: 3; leading coefficient: -19
Answer: C
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Identify the set as finite or infinite.The set of even whole numbers less than 100
A. Finite B. Infinite
Round the number to the specified place.265,427 to the nearest ten thousand
A. 300,000 B. 260,000 C. 265,000 D. 270,000
Without using a calculator, determine whether the first number is divisible by the second number.Is 18,871 divisible by 6?
A. Yes B. No
Solve the problem.Suppose there are two low-frequency sound waves with similar frequencies. Let 
and 
model the two tones where t is time measured in seconds. Write the sum 
as a product of two trigonometric functions, and determine the frequency of the beats.
A. no beats 0.006 cos (83?t) cos (83?t) B. no beats 0.006 cos (41.5?t) cos (41.5?t) C. 1.5 beats per second 0.006 cos (41.5?t) cos(1.5?t) D. 3 beats per second 0.006 cos (83?t) cos (3?t)