Determine an estimate of the exact answer. Use estimation by rounding.Estimate the floor area of a classroom that measures 394 feet long and 222 feet wide by rounding each measurement to the nearest ten.
A. 85,800 square feet
B. 1010 square feet
C. 1.77 square feet
D. 87,468 square feet
Answer: A
Mathematics
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Use a table of values to graph the plane curve defined by the following parametric equations. Find a rectangular equation for the curve.x = t2, y = 
+ 2, for t in [0, 4] 
A. 
y = 
x - 1, for x in [0, 16]
B. 
y = 
+ 2, for x in [0, 16]
C. 
y = 
- 1, for x in [0, 16]
D. 
y = x2 - 1, for x in [0, 2]
Mathematics
Graph the function.f(x) = 
A. 
B. 
C. 
D. 
Mathematics
Graph the system of inequalities.x + y ? 9x + y ? 5y ? 0x ? 0
A. 
B. 
C. 
D. 
Mathematics
Find the product.-5ab2(5ab7 - 9b5)
A. -25ab + 45b B. -25a2b9 - 9b5 C. -25a2b9 + 45b7 D. -25a2b9 + 45ab7
Mathematics