Given 
set up a Riemann sum to approximate the area under the graph of f(x) on the given interval. Use the left endpoints. Is the following the correct sum? Enter "yes" or "no". 
Fill in the blank(s) with the appropriate word(s).
"yes"
Mathematics
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Divide and simplify.
A. 
B. 
C. 
D. 
Mathematics
Solve.
x - 
= -4
A. x = 17 B. x = -17 C. x = -15 D. x = 15
Mathematics
Identify the equation as either an identity or not.
= 
A. Identity B. Not an identity
Mathematics
Write the following in interval notation.{x| x > 7}
A. (?, 7) B. (7, -?) C. (-?, 7) D. (7, ?)
Mathematics