Use the absolute value to express the distance between the points with coordinates a and b on the number line. Then determine this distance by evaluating the absolute value expression.a = -1 and b = -6
A. 
= -7
B. 
= -5
C. 
= 5
D. 
= 7
Answer: C
Mathematics
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Find the unit tangent vector T and the principal unit normal vector N. r(t) = (4t sin t + 4cos t)i + (4t cos t - 4 sin t)j - 5k
A. T = (-cos t)i - (sin t)j; N = (sin t)i + (cos t)j B. T = (-cos t)i - (sin t)j; N = (sin t)i - (cos t)j C. T = (cos t)i + (sin t)j; N = (-sin t)i + (cos t)j D. T = (cos t)i - (sin t)j; N = (-sin t)i - (cos t)j
Mathematics
Find the zero of the linear function.f(z) = - 
z - 9
A. -63 B. 2 C. 63 D. -2
Mathematics
Provide the proper response.Fill in the blanks so that the following is a geometric progression. 1.01, 
, 
, 
, 0.025856, 
What will be an ideal response?
Mathematics
Rationalize the denominator.
A. -7 - 2
B. 7 - 2
C. 7 + 2
D. 2
- 7
Mathematics