Find the equation of the parabola with the given properties.Vertex: (-1, 4); horizontal axis of symmetry; containing the point (11, 2)
A. 
(x - 4) =(y + 1)2
B. 
(y - 4) =(x + 1)2
C. 
(x + 1) =(y - 4)2
D. 
(y + 4) =(x - 1)2
Answer: C
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If R1 = 47 ê, R2 = 53 ê, and R3 = 90 ê, then IT = 30 mA. Find I3.
a. 6.50 mA
b. 11.04 mA
c. 12.45 mA
d. 9.48 mA
e. 3.08 mA
Provide an appropriate response.Fill in the blanks to complete the statement. The graph of P(x) = -0.4(x - 7)2 is a parabola with 
x-intercept(s). Its vertex is the 
point of the graph and has coordinates 
.
A. two; maximum (or highest); (7, 0) B. one; maximum (or highest); (7, 0) C. one; minimum (or lowest); (7, 0) D. no; maximum (or highest); (-0.4, 7)
If an island's only residents are penguins and bears, and if there are 17 heads and 38 feet on the island, how many penguins and how many bears are on the island? ? The number of bears is __________. ? The number of penguins is __________. ?
What will be an ideal response?
Obtain an equivalent system by performing the stated elementary operation on the system.Multiply the second equation by -1. x - 5y + z = 35x - 2y - z = -18 3x + y + 2z = -18 x - 5y + z = -15
A. -x + 5y - z = -3 5x - 2y - z = -18 3x + y + 2z = -18 x - 5y + z = -15 B. x - 5y + z = 3 -5x + 2y + z = -18 3x + y + 2z = -18 x - 5y + z = -15 C. x - 5y + z = 3 -5x + 2y + z = 18 3x + y + 2z = -18 x - 5y + z = -15 D. x - 5y + z = 3 -5x - 2y - z = -18 3x + y + 2z = -18 x - 5y + z = -15