Find the curvature of the space curve.r(t) = -7i + (5 + 2t)j + (t2 + 7)k
A. ? = 
B. ? = 
C. ? = - 
D. ? = 
Answer: D
Mathematics
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Use a finite approximation to estimate the area under the graph of the given function on the stated interval as instructed.f(x) = 25 - x2 between x = -5 and x = 5 using the "midpoint rule" with two rectangles of equal width.
A. 93.75 B. 187.5 C. 10 D. 62.5
Mathematics
Find the magnitude of vector v.
a. 
b. 
c. 
d. 
e. 
Mathematics
Solve the equation. Express radicals in simplest form.7z2 + 3 = 346
A. {-8, 8} B. {173} C. {-7, 7} D. {7}
Mathematics
Find the measure of the indicated exterior angle in the triangle, when 
.
?
?
A. 
B. 
C. 
D. 
E. 
Mathematics