Solve the problem.Does the commutative property of addition, A + B = B + A, hold for matrices A and B?A = 
, B = 
A. Yes
B. No
Answer: A
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Use the method of writing each premise in symbols in order to arrive at a valid conclusion.If you pay your taxes, then you are a good citizen.People who do not pay their taxes did not receive a tax bill.If it is April, then you will receive a tax bill.It is April.Therefore, ...
A. You are not a good citizen. B. You are a good citizen. C. You did not pay your taxes. D. You did not receive a tax bill.
Name the property illustrated by the sentence.-7(x + y) = -7x - 7y
A. Commutative property of multiplication B. Associative property of addition C. Distributive property D. Multiplicative identity property
Find A-1 without a calculator.A = 
A. A-1 = 
B. A-1 = 
C. A-1 =
Solve the problem.The radius, r, of a sphere can be found using the formula 
where S is the surface area. If the surface area is 5007 square inches, what is the radius? (Use ? ? 3.14 and round to the nearest tenth.)
A. 40.0 in. B. 35.4 in. C. 62.7 in. D. 20.0 in.