Solve the system of equations.25x2 + 36y2 = 900y - x = 5
A. 
, (3, 8)
B. 
, (5, 0)
C. 
, (0, 5)
D. 
, (2, 7)
Answer: C
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Use the information below to determine the cardinality of the set. U = {q, r, s, t, u, v, w, x, y, z} A = {q, s, u, w, y} B = {q, s, y, z}n(A ? B)
A. 5 B. 3 C. 6 D. 10
Determine the symmetries of the curve.r = 4?
A. x-axis only B. y-axis only C. x-axis, y-axis, origin D. No symmetry
Perform the indicated operations and simplify the result. Leave the answer in factored form.
A. 
B. 
C. 2
D. x2 + 2
Solve the problem.On an average winter day in North Town a 24-hour heating and plumbing company receives 100 calls from customers requiring service. The number of calls varies, however, depending on the outside temperature (in degrees Celsius). Here is some data giving the number of calls as a function of the temperature. 
Sketch the given data on an appropriately scaled and labeled coordinate axes.
A. 
B. 
C. 
D. 