Answer the question.True or False? The x-coordinate is positive in quadrants I and IV.
A. False
B. True
Answer: B
Mathematics
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Write the system in the form 
Then solve the linear system by computing 
with a calculator. Round numbers to the nearest tenth, as necessary.1.6x + 17.9y - 4.7z = 1.23.1x - 7.0y - 1.3z = -3.23.8x + 18.9y + 3.8z = 9.7
A. (0.1, 0.3, 0.9) B. (0.0, 0.1, 0.4) C. (0.1, 0.7, 2.1) D. (0.0, 0.1, 0.2)
Mathematics
Factor the trinomial completely. If the trinomial cannot be factored, say it is prime.a2 - 5ab - 36b2
A. (a + 4b)(a - 9b) B. (a - 4b)(a + b) C. (a - 4b)(a + 9b) D. prime
Mathematics
Solve the system.- 
+ 
= 52 
+ 
= 36
A. {(8, 3)} B. {(3, 8)} C. {(30, 80)} D. {(80, 30)}
Mathematics
Write the algebraic expression without parentheses.
(4x) + [(3x) + (-3x)]
A. x B. 7x C. 1 D. -5x
Mathematics