Find the measure of the requested angle.Find the complement of 41°.
A. 139°
B. 49°
C. 229°
D. 319°
Answer: B
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Answer the question.What does the digit 7 mean in the number 189,247?
A. 7 ones B. 7 tens C. 7 thousands D. 7 hundreds
Write the interval in set-builder notation and graph the set on a number line.(-?, -3)
A. {x|x > -3}
B. {x|x ? -3}
C. {x|x ? -3}
D. {x|x < -3}
Rewrite the system of inequalities, adding slack variables or subtracting surplus variables as needed.x1 + x2 + x3 ? 41x1 + x2 + x3 ? 25x1 + x2 ? 20
A. x1 + x2 + x3 + s1 = 41 x1 + x2 + x3 + s2 = 25 x1 + x2 + s3 = 20 B. x1 + x2 + x3 + s1 = 41 x1 + x2 + x3 - s2 = 25 x1 + x2 - s3 = 20 C. x1 + x2 + x3 - s1 = 41 x1 + x2 + x3 + s2 = 25 x1 + x2 + s3 = 20 D. x1 + x2 + x3 - s1 = 41 x1 + x2 + x3 - s2 = 25 x1 + x2 - s3 = 20
Factor.12x2 + 10xy - 12y2
A. 2(3x - 2y)(2x + 3y) B. 2(3x - 2y)(2x - 3y) C. 2(3x + 2y)(2x - 3y) D. 2(6x2 + 5xy - 6y2)