Given the values of x and y, find an equation of variation in which y varies directly as x.y = 0.8, when x = 0.5
A. x = 1.6y
B. x = 0.8y
C. y = 0.8x
D. y = 1.6x
Answer: D
Mathematics
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Solve the equation.
= 1 + 
A. ? B. {6, 10} C. {-2, 4} D. {-12}
Mathematics
If necessary, write the equation in the standard form ax2 + bx + c = 0. Then identify the values of a, b, and c. Do not actually solve the equation.(x - 4)(x - 9) = 0
A. a = 0, b = 13, c = 36 B. a = 1, b = -13, c = 36 C. a = 1, b = -13, c = -36 D. a = 1, b = 0, c = 36
Mathematics
Write out the sum. Do not evaluate.
A. 2 + 22 + 23 + ... + 2n+1 B. 22 + 23 + 24 + ... + 2n C. 2 + 22 + 23 + ... + 2n D. 22 + 23 + 24 + ... + 2n+1
Mathematics
Factor:
Mathematics