The following figure is composed of one large and three small semicircles. Find the shaded area enclosed by the four semicircles. Give the exact answer.
What will be an ideal response?
12? feet2
Mathematics
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Provide an appropriate response.
Find the total area.
A. 4x2 + 6x + 9 B. 4x2 + 12x + 9 C. 2x2 + 12x + 9 D. 2x2 + 6x + 9
Mathematics
Solve.The number of pets (measured in thousands) living in Springfield homes can be approximated by the equation N(x) = 0.17x2 - 0.24x + 177.9, where x is the number of years after 1990. Find 
A. N(5) = 181,910 B. N(5) = 180,950 C. N(5) = 1026.7 D. N(5) = 3050
Mathematics
Solve the equation by factoring.
= 
A. {4, -1} B. {16, -1} C. {16, 1} D. {4, 1}
Mathematics
Simplify the following expression by first substituting values from the table of exact values and then simplifying the resulting expression.
Table of Exact Values
xsin xcos x0°0130°
45°
60°
90°10?
?
A. 
B. 
C. 1
D. 0
E. 
Mathematics