Which method should be used to solve the system? Explain your answer, including a description of the first step.-5x2 + 3y2 =49x + 6y =3

What will be an ideal response?


Substitution should be used, because using elimination would mean introducing an xy term into the second equation unnecessarily. The second equation should be solved for x.

Mathematics

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The initial value of an exponential function is 16, and the growth factor is 1.02. If t is the independent variable, for what value of t does the function have the value 46? Round your answer to two decimal places.  ?

A. ?
B. ?
C. ?
D.

Mathematics

Simplify.-( -( -( -n))) for n = -11

A. -11 B. 12 C. 11 D. -12

Mathematics

Identify the rate, base, and portion. 36% of what number is 93?

A. rate (%) = 36% base (of) = unknown number  portion (is) = 93 B. rate (%) = 93% base (of) = unknown number  portion (is) = 36 C. rate (%) = unknown number  base (of) = 93 portion (is) = 36% D. rate (%) = 36% base (of) = 93 portion (is) = unknown number

Mathematics

Solve the problem.An employee had 6% deducted from his paycheck for deposit in the company 401K plan. Express this percent as a fraction.

A.
B.
C.
D.

Mathematics