Solve the system of equations.x2 + y2 = 113x + y = 15
A. (8, 7), (7, 8)
B. (-8, -7), (-7, -8)
C. (-8, 7), (-7, 8)
D. (8, -7), (7, -8)
Answer: A
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Provide an appropriate response.How many gallons of water must be added to 2 gallons of antifreeze to produce a mixture that is 40% antifreeze?
Fill in the blank(s) with the appropriate word(s).
Factor completely. If the polynomial is prime, state so.t3 + 729
A. (t + 9)(t2 + 81) B. (t - 729)(t + 1)(t - 1) C. (t - 9)(t2 + 9t + 81) D. (t + 9)(t2 - 9t + 81)
Translate the sentence to an equation and then solve.If 4 times a number is added to -9, the result is equal to 13 times the number.
A. 4x + (-9) = 13x; -1 B. 13(4x - 9) = -9; -1 C. 4x + 9x = 13; 1 D. 4x - (-9) = 13x; 1
Solve.Alan's yard is rectangular and measures 11.7 meters by 16.3 meters. Maria's yard is rectangular and measures 44.7 meters by 47.6 meters. How much greater is the area of Maria's yard than the area of Alan's yard?
A. 1937.01 m2 B. 19,370.1 m2 C. 2318.43 m2 D. 64.3 m2