Find the system of equations to model the problem. DO NOT SOLVE THIS SYSTEM.If $9,000 is to be invested, part at 13% and the rest at 8% simple interest, how much should be invested at each rate so that the total annual return will be the same as $9,000 invested at 9%? Set up a system of linear equations, letting x1 be the amount invested at 13% and x2 be the amount invested at 8%.
What will be an ideal response?
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Solve the equation. Write the answer in a + bi form.z3 - 8 = 0
A. 2, 1 + 
i, -1 - 
i
B. 2, 1 - 
i, -1 - 
i
C. 2, -1 + 
i, -1 - 
i
D. 2, 1 + 
i, 1 - 
i
Find the unit tangent vector of the given curve.r(t) = (5 sin3 8t)i + (5 cos3 8t)j
A. T = (5 sin 8t)i - (5 cos 8t)j B. T = (120 sin 8t)i -(120 cos 8t)j C. T = (5 cos 8t)i - (5 sin 8t)j D. T = (sin 8t)i - (cos 8t)j
Provide an appropriate response.Use the cosine function to find the indicated part of triangle ABC. Round to four significant digits. Find c if a = 11 mm and A = 19.8°.
A. 11.69 mm B. 3.726 mm C. 10.35 mm D. 32.47 mm
Solve the problem.In the weighted voting system 
, every player has veto power. The value of the quota q is
A. 18. B. 10. C. 15. D. 17. E. none of these