Solve the inequality and express the solution set in interval notation. Graph the solution set on the real number line.
x ? 5
A. (-?, 
]
B. (-?, 
)
C. (
, ?)
D. [
, ?)
Answer: D
Mathematics
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Perform the indicated operation. Simplify if possible.
+ 
A. 
B. - 
C. 0
D. 
Mathematics
Use the indicated formula to find the sum.Use S = 
to find the sum of 1 + 2 + 3 + . . . + 300.
A. 4515 B. 44,850 C. 45,000 D. 45,150
Mathematics
Let x represent one number and let y represent the other number. Use the given conditions to write a system of equations. Solve the system and find the numbers.One number is four more than a second number. Two times the first number is 6 more than four times the second number.
A. 4 and 0 B. 6 and 2 C. 5 and 1 D. - 7 and - 11
Mathematics
Evaluate the expression.
A. 0 B. 362,880 C. 1 D. 9
Mathematics