Perform the indicated operation and simplify.
+ 
A. 
B. 
C. 
D. 
Answer: C
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Find the unit tangent vector T and the principal unit normal vector N. r(t) = (ln(cos t) + 1)i + 3j + (7 + t )k, -?/2 < t < ?/2
A. T = (sin t)i + (cos t)k; N = (cos t)i - (sin t)k B. T = (-sin t)i + (cos t)k; N = (-cos t)i + (sin t)k C. T = (sin t)i - (cos t)k; N = (cos t)i - (sin t)k; D. T = (-sin t)i + (cos t)k; N = (-cos t)i - (sin t)k
What is the angle generated for the following conditions? Express your answer in both radians and degrees:
t f a. 3 mSec 30 MHz b. 14 êSec 19.5 MHz c. 120 êSec 4.2 KHz d. 17 mSec 90 Hz
Complete the horizontal analysis for the balance sheet. Round to the nearest tenth of a percent.
A. 61.8%, 83.3%, 83.0%, 78.0%, 77.8%, 58.8%, 75.6% B. 61.8%, 20.0%, 20.5%, 28.2%, 28.5%, 70.0%, 32.3% C. 38.2%, 16.7%, 17.0%, 22.0%, 22.2%, 41.2%, 24.4% D. 61.9%, 19.8%, 20.5%, 28.2%, 28.5%, 70.0%, 32.2%
Simplify the expression.16 + (-3)(-29) + (-22)
A. 26 B. 81 C. 133 D. 529