Solve the system by the method of substitution.
?
?
A. (5, -13), (-4, -22)
B. No real solution
C. (5, -17), (-4, -26)
D. (5, 27), (-4, 18)
E. (5, -13)
Answer: D
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Rewrite the equation in standard form. Find the center or vertex. Identify the conic and sketch the curve.x2 + y2 + 2x + 12y - 12 = 0
A. circle; center (-1, -6);
(x - 1)2 + (y - 6)2 = 49
B. circle; center (1, 6);
(x + 1)2 + (y + 6)2 = 49
C. circle; center (-1, -6);
(x + 1)2 + (y + 6)2 = 49
D. circle; center (1, 6);
(x - 1)2 + (y - 6)2 = 49
Find two polar coordinate representations for the point (3,? / 3), one with r > 0, and the other with r < 0.
What will be an ideal response?
Solve, using the substitution method, and check.
A. (6, 1) B. (-3, 4) C. (3, 4) D. (2, 5) E. (8, 9)
Write the number in scientific notation.In the metric system of measurement, the prefix giga- means 1,000,000,000. Write this number in scientific notation.
A. 10 × 108 B. 1 × 109 C. 1 × 10-9 D. 0.1 × 10-8