Simplify by using the order of operations. Round your answer to the nearest hundredth.(7.2)2 × 8.2 × 0.6 - 9.1 × 1.5 × 2.4
A. 222.24
B. 231.48
C. 202.77
D. 222.29
Answer: D
Mathematics
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Solve the quadratic equation and express all nonreal complex solutions in terms of i.4(x2 + 1) = -4x
A. 
B. 
C. 
D. 
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Evaluate the numerical expression.324/5
A. 16 B. 256 C. 512 D. 128
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Solve.A formula for the focal length of a lens is f = 
. Calculate f (the focal length) for a = 16 cm and 
Round to the nearest tenth.
A. 6.9 cm B. 9.1 cm C. 6.0 cm D. 8.0 cm
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Find the product.
A. x2 + 
x - 
B. x2 + 
x - 
C. x2 + 
x + 
D. x2 + 
x - 
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