Combine like terms.9.8t + 6.8 - 5.3t
A. -4.5t - 6.8
B. 4.5t + 6.8
C. -4.5t + 6.8
D. 15.1t + 6.8
Answer: B
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Evaluate the function.X(x, y) = cos(y sin x); find X
.
A. 
B. 
C. - 
D. - 
Let 
Find the following limits.
a. both 1
b. 2 and 1
c. 2 and –1
d. 1 and –1
e. both –1
Graph the function, showing all asymptotes (those that do not correspond to an axis) as dashed lines. List the x- and y-intercepts.f(x) = 
A. x-intercept: 
; y-intercept: 
;
B. x-intercept: 
; y-intercept: 
;
C. x-intercept: 
; y-intercept: 
;
D. x-intercept: 
; y-intercept: 
;
The mean is sometimes called the arithmetic mean to distinguish it from other possible means. For example, a different mean, called the harmonic mean (H.M.), is used to average speeds. This mean is defined to be the sum of the reciprocals of all scores divided into the number of scores. For example, the harmonic mean of the numbers 4, 5, 6, 6, 7, 8 is
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Find the arithmetic mean and the harmonic mean of the numbers 2, 2, 4, 4, 7, 8, 8, 9, 9, and 10.
?
Round your answers to the nearest hundredth.
?
A. 
B. 
C. ?
D. ?
E. ?