Add or subtract, if possible. Assume that all variables represent non-negative values. Simplify your answer. 4 
- 4
+ 2 
+ 2
A. 4
B. 6 
- 2
C. 6 
- 2
D. 6 
- 2
Answer: C
Mathematics
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Perform the indicated operation. Simplify, if possible.
+ 
A. 
B. 
C. 
D. 
Mathematics
Approximate the area under the curve using 10 inscribed rectangles and then using 10 circumscribed rectangles. Also find the exact area under the curve.y = 5x2 between x = 0 and x = 1
What will be an ideal response?
Mathematics
Perform the indicated operation and simplify. Write the answer in the form a + bi.(2 - 4i)(4 + 3i)
A. -12i2 - 10i + 8 B. -4 - 22i C. 20 - 10i D. 20 + 10i
Mathematics
Solve.On a sunny day, a building and its shadow form the legs of a right triangle. If the hypotenuse of the triangle is 32 m long and the shadow is 23 m, how tall is the building? Round to the nearest tenth of a meter.
A. 22.3 m B. 9.0 m C. 39.4 m D. 22.2 m
Mathematics