Solve the problem.An object is traveling around a circle with a radius of 20 meters. If in 10 seconds a central angle of 
radian is swept out, what is the linear speed of the object?
A. 
m/sec
B. 
m/sec
C. 
m/sec
D. m/sec
Answer: B
Mathematics
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Use the vertical line test to determine if y is a function of x.
A. Not a function B. Function
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Find the derivative of the function by using the definition.y = 25 - 13x
A. - 13x B. - 13 C. 25 - 13x D. 12
Mathematics
Factor the expression completely.5x3 + 15x2 - 50x
A. (5x2 + 10x)(x - 5) B. 5x(x + 2)(x - 5) C. (x - 2)(5x2 + 25x) D. 5x(x - 2)(x + 5)
Mathematics
Solve the problem.A chemist makes a mixture of concentrated hydrochloric acid and distilled water so that the ratio of acid to water is 7 : 3. If he starts with 14 L of acid, how much water is mixed with the acid?
A. 11 L B. 6 L C. 49 L D. 17 L
Mathematics