Solve the equation.
+ x = 3
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Use the properties of angle measures to find the measure of each marked angle.
a = (x + 18)°b = (x + 118)°
A. 79°, 79°, 22° B. 11°, 22°, 147° C. 22°, 29°, 129° D. 11°, 22°, 57°
Mathematics
Factor the polynomial completely using the trial and error method.8x2 + 17x - 21
A. (x - 7)(8x + 3) B. prime C. (x - 3)(8x + 7) D. (x + 3)(8x - 7)
Mathematics
Solve the problem.A bike road race starts at an elevation of 510 feet and passes through 5 stages where the elevation changes by 251 feet, 195 feet, -213 feet, -136 feet, and 249 feet. At what elevation does the race end?
A. 1554 ft B. 856 ft C. 177 ft D. -1554 ft
Mathematics
Rationalize the numerator. Assume all variables represent positive numbers.
A. 
B. 
C. 
D. 
Mathematics