Find the square root. Express the answer as a whole number or as a square root. Do not use a calculator.

A. 14
B. 5
C. 10
D. 2


Answer: C

Mathematics

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Find the unit tangent vector T and the principal unit normal vector N. r(t) = (cosh t)i + (sinh t)j + tk 

A. T = -  (tanh t sech t)i  + j  + (sech t)k; N = (-sech t)i  - (tanh t)k 
B. T = - (tanh t)i  + j  + (sech t)k; N = (-sech t)i  - (sinh t)k 
C. T = (tanh t)i  + j  + (sech t)k; N = (sech t)i  - (tanh t)k 
D. T = (tanh t sech t)i  + j  + (sech t)k; N = (sech2 t)i  - (sinh t)k 

Mathematics

Graph the function by starting with the graph of the basic function and then using the techniques of shifting, compressing, stretching, and/or reflecting.f(x) = |7x|

A.

B.

C.

D.

Mathematics

Toothpicks can be arranged to form triangles as shown below. How many toothpicks are required to form a triangle with ten toothpicks on a side?

Mathematics

Evaluate.2 ? 

A.
B. - 
C. - 
D.

Mathematics