Solve the system of equations by substitution.5x - 2y = -1 x + 4y = 35
A. (2, 8)
B. (2, 9)
C. (3, 8)
D. (3, 9)
Answer: C
Mathematics
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Find the indicated part of the right triangle.The legs are 5.5 and 10.1. Find the larger acute angle. Round your answer to the nearest hundredth.
A. 57.45° B. 61.43° C. 28.57° D. 67.64°
Mathematics
Solve the equation by factoring.x2 + 4x = 0
A. {0, 4} B. {4} C. {- 4} D. {0, - 4}
Mathematics
Perform the indicated operation. Write the result in standard form.(-5 + 7i) - 3
A. -2 + 7i B. 8 - 7i C. -8 + 7i D. -2 - 7i
Mathematics
Find the exact value. If the value of the function is not defined, write undefined.sin 
A. 0
B. -1
C. Undefined
D. 
Mathematics