True or false: the following subset of 
is a subspace of .
?
The set of all nonnegative functions: 
?
Answer the following statement true (T) or false (F)
False
Mathematics
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Perform the indicated operation.
+ 
- 
A. 
B. 
C. 
D. 
Mathematics
Solve the inequality, then graph the solution.8t + 12 ? 7t + 21
A. (-?, 8)
B. (-?, 9]
C. [9, ?)
D. (8, ?)
Mathematics
Find the area enclosed by the given curves.Find the area of the region in the first quadrant bounded on the left by the y-axis, below by the line 
above left by y = x + 4, and above right by y = - x2 + 10.
A. 15
B. 
C. 
D. 
Mathematics
Multiply the polynomials using a special product formula. Express the answer as a single polynomial in standard form.(2x - 7)2
A. 2x2 + 49 B. 4x2 - 28x + 49 C. 4x2 + 49 D. 2x2 - 28x + 49
Mathematics