Find the solution to the system of equations by the substitution method.x + y = -8x - y = 17
A. (8, 
)
B. (8, - 
)
C. (
, 
)
D. (
, - 
)
Answer: D
Mathematics
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Solve the problem. Round your answer to the nearest whole number.A tree casts a shadow 21 m long. At the same time, the shadow cast by a 70-cm tall statue is 73 cm long. Find the height of the tree.
A. 19 m B. 21 m C. 20 m D. 22 m
Mathematics
Choose the most reasonable unit of measure.Hammer length: 38 
(mm, cm, m, km)
A. cm B. km C. m D. mm
Mathematics
Use synthetic division to find the quotient and the remainder.(x3 - 3) ÷ (x - 1)
A. Q(x) = x2 + x + 1; R(x) = -2 B. Q(x) = x2 - x - 1; R(x) = 0 C. Q(x) = x2 + x + 1; R(x) = 3 D. Q(x) = x3 - x2 - x - 1; R(x) = 0
Mathematics
Find the LCM for the set of numbers.10, 20, 30, 40
A. 120 B. 108 C. 90 D. 60
Mathematics