Add or subtract as indicated. If terms are not like radicals and cannot be combined, so state. Assume all variables represent nonnegative real numbers.y
- 
A. 2y
- 56
B. -3y
C. y
D. (y + 1)
Answer: B
Mathematics
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Solve and check.7 + y = 18
A. y = 11 B. y = 126 C. y = 9 D. y = 25
Mathematics
Determine if the sequence is arithmetic. If the sequence is arithmetic, find the common difference.3, 9, 27, 81, 243, . . .
A. yes, 9
B. yes, 
C. yes, 3
D. no
Mathematics
Use a calculator to find the approximate value of the expression rounded to two decimal places.cos 3
A. 0.99 B. -0.99 C. 1.00 D. -1.00
Mathematics
Solve the system.5x + 5y + z = -92x - 4y - z = -172x + y + 5z = -1
A. ? B. {(-4, 1, 2)} C. {(-4, 2, 1)} D. {(1, 2, -4)}
Mathematics