Use the quadratic formula to solve the equation. Give both exact and approximate answers.2x2 + 8x = - 7
A. 
; -0.646, -1.354
B. 
; -3.293, -4.707
C. 
; 0.739, -4.739
D. 
; -1.293, -2.707
Answer: D
Mathematics
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Graph the pair of parametric equations with the aid of a graphing calculator.x = 6t - 6 sin t, y = 6 - 6 cos t, -2? ? t ? 2?
A. 
B. 
C. 
D. 
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Provide an appropriate response.Find x if 7e3x = 1
Fill in the blank(s) with the appropriate word(s).
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Find the vertex and y-intercept and graph the equation.y = x2 - 2x + 3
A. vertex: 
; y-intercept: 3
B. vertex: (1, -2); y-intercept: -3
C. vertex: (1, -1); y-intercept: 0
D. vertex: (1, 2); y-intercept: 3
Mathematics
Solve.Write the largest four-digit number that can be made from the digits 3, 2, 7, and 1 if each digit must be used once.
A. 7312 B. 1237 C. 7321 D. 3721
Mathematics