Simplify by writing the expression with positive exponents. Assume that all variables represent nonzero real numbers.

A. y + d
B.
C. (y + d)7
D.


Answer: A

Mathematics

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Use the theoretical probability formula to solve the problem. Express the probability as a fraction reduced to lowest terms.A die is rolled. The set of equally likely outcomes is {1, 2, 3, 4, 5, 6}. Find the probability of getting a 3.

A.
B. 0
C. 3
D.

Mathematics

Solve the problem.The earth, Jupiter, Saturn, and Neptune all revolve around the sun. The earth takes 1 year, Jupiter approximately 12 years, Saturn approximately 30 years, and Neptune approximately 165 years to make a complete revolution. How often will Jupiter, Saturn, and Neptune appear in the same direction in the night sky as seen from earth?[Hint: Find the LCM of 12, 30, and 165]

A. Every 660 years B. Every 3300 years C. Every 1980 years D. Every 330 years

Mathematics

Solve the system using the inverse that is given for the coefficient matrix.?

A. {(45, -51, 18)} B. {(51, 69, 30)} C. {(15, -60, 15)} D. {(-12, -24, 6)}

Mathematics

Simplify.

A.
B.
C.
D.

Mathematics