Solve the problem.Find the missing measurement in the figure below.
a = 0.76 b = 0.4 cm c = 4 cm
A. z = 3.64 cm
B. z = 4.36 cm
C. z = 2.84 cm
D. z = 3.24 cm
Answer: C
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Use the properties of equality to solve the equation.p - 11 = 17
A. p = 38 B. p = 23 C. p = 6 D. p = 28 E. none of these
Differentiate the function.r(t) = (cot t)i + (csc t)j
A. r'(t) = (-sec2 t)i - (tan t sec t)j B. r'(t) = (-csc2 t)i - (cot t csc t)j C. r'(t) = (sec2 t)i + (tan t sec t)j D. r'(t) = (csc2 t)i + (cot t csc t)j
Find the center of mass of the thin rod with the given density function.Find the center of mass of a thin rod that lies along the first-quadrant portion of the circle 
if the density of the rod is 
A. 
= 
, 
= 
B. 
= 1, 
= 1
C. 
= 
, 
= 
D. 
= 
, 
= 
Estimate the value as a whole number or as a mixed numeral where the fractional part is 
.
+ 
+ 
A. 3
B. 2
C. 2
D. 3