Determine whether or not the points are vertices of the given geometric figure.(5, 1), (3, -2), and (8, -1); isosceles triangle
A. Yes
B. No
Answer: A
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Find the curvature of the space curve.r(t) = ti + (sinh t)j + (cosh t)k
A. ? = cosh2 t
B. ? = sinh2 t
C. ? = 
D. ? = 
Solve the problem.A couple have bought a new house and are comparing quotes from two moving companies for moving their furniture. Company A charges $120 for the truck and $50 per hour for the movers. Company B charges $100 for the truck and $60 per hour for the movers. Create a cost equation for each company where y is the total cost and x is the number of hours of labor. Write a system of equations.
A. 
B. 
C. 
D. 
Find the cross-product and determine whether the proportion is true or false.
= 
A. 200.75 = 134.75; true B. 202.125 = 202.125; true C. 134.75 ? 303.1875; false D. 202.125 ? 202.125; false
Solve. Write the answer in simplest form.Robin is saving 
of her monthly income of $8460 for retirement. How much money is she setting aside each month for retirement?
A. $423 B. $141 C. $1269 D. $56,400