Find A-1, if it exists.A = 
A. 
B. 
C. Does not exist
D. 
Answer: B
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Replace the Cartesian equation with an equivalent polar equation.xy = 1
A. 2r2 sin ? cos ? = 1 B. r sin 2? = 2 C. 2r sin ? cos ? = 1 D. r2 sin 2? = 2
The position vector of a particle is r(t). Find the requested vector.The velocity at t = 4 for r(t) = (8t2 + 2t + 9)i - 2t3j + (2 - t2)k
A. v(4) = 62i - 96j - 8k B. v(4) = 66i - 96j - 8k C. v(4) = 34i - 32j - 4k D. v(4) = 66i + 96j + 8k
Provide an appropriate response.
A surveyor has to determine the area of an irregular piece of land. What is the area? (Hint: Construct lines AC and CE.)
A. 8,715 ft2 B. 11,805 ft2 C. 11,296 ft2 D. insufficient information
Grant receives $252 annual income from one investment. Jeff invested $3400 more than Grant, but at an annual rate of 1% less. Jeff's annual income is $496. Find the amount and rate of Grant's investment. ? Please enter your answer as two numbers in dollars and in percents without the units. The numbers must be separated by a comma.
What will be an ideal response?