Perform the indicated operations and simplify the result. Leave the answer in factored form.
? 
A. 
B. 
C. 
D. 
Answer: D
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R1 = 100 ê, R2 = 22 ê, and R3 = 470 ê. Find RT.
a. 10.00
b. 26.42
c. 17.36
d. 263.3
e. 790.0
Use a graphing calculator to solve the system of equations. Round your solutions to one decimal place.2.6x- 0.7y+ 5.3z- 3.4w= 12.9 6.5y+ 0.7w= -1.8 4.0z- 2.2w= 1.54.9x+ 0.6w= 3.2
A. (2.2, 1.1, 7.2, 12.4) B. (-2.2, 1.1, -6.4, 23.3) C. (2.2, -1.1, -6.4, 7.6) D. (2.2, 1.1, -6.4, -12.4)
Graph the function. Use the graph to find any relative maxima or minima.f(x) = -x2 + 6x - 7
A. Relative maximum of 2 at x = 3 B. Relative minimum of 2 at x = 3 C. No relative extrema D. Relative maximum of 3 at x = 2
Find the direction the parabola opens, the coordinates of the vertex, the equation of the axis of symmetry and draw the graph.x = y2 - 2y + 4
A. 
opens up; vertex (1, 3);
axis of symmetry x = 1
B. 
opens right; vertex (3, 1);
axis of symmetry y = 1
C. 
opens down; vertex (-1, 5);
axis of symmetry x = -1
D. 
opens right; vertex (3, -1);
axis of symmetry y = -1