Use a graphing calculator to approximate the real zeros. Give each zero as a decimal to the nearest tenth.f(x) = x4 - 9x2 + 20
A. 5, -5, 4, -4
B. 2.2, 2
C. 2.2, -2.2, 2, -2
D. -1, 2.7, 2.7, -2.7
Answer: C
Mathematics
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Find the equation of the circle from the given information.Center at (-10, 0), radius 4
A. (x + 10)2 + y2 = 16 B. (x - 10)2 + y2 = 16 C. x2 + (y - 10)2 = 4 D. x2 + (y + 10)2 = 4
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Find the domain and the range of the relation.{(6, 1), (6, -6), (6, -1)}
A. domain: {6} ; range: {-6, -1, 1, 6} B. domain: {1, 6} ; range: {-6, -1} C. domain: {-6, -1, 1} ; range: {6} D. domain: {6} ; range: {-6, -1, 1}
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Use radical notation to write the expression. Do not simplify.x9/2
A. 
B. 
C. -
D. 
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Find the nth, or general, term.-1, 1, -1, 1, . . .
A. -1n-1 B. -1n C. (-1)n D. (-1)n-1
Mathematics