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3 years ago

Wich of the following expressions are equivalent to - 2/3 ? select all that apply

Mathematics

1 answer:

MrRa [10]3 years ago

7 0

Answer:

A, C and E

Step-by-step explanation:

Simplify each expression to lowest terms. Equivalent expressions will be any expressions which are equal after simplifying to lowest terms.

A. -1/9 * 6 = -6/9 = -2/3

B. -15/10 = -3/2

C. 12/-18 = -2/3

D. -3/4 * 2/1 = -6/4 = -3/2

E. -8/9 * 3/4 = -24/36 = -2/3

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Step-by-step explanation:

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3 years ago

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Answer:

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3 years ago

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Answer:

Except k=7, any real number for k would cause the system of equations to have no solution.

Step-by-step explanation:

In general a system of equations can be represented as ax+by=c and dx+ey=f. In order this system of equations to have NO SOLUTIONS a/d=b/a≠c/f. In our example a=6, b=4, c=14, d=3, e=2 and f=k. To apply the formula above, 6/3=4/2≠14/k. Hence k≠7. It can be concluded that except k=7, any real number for k would cause the system of equations to have no solutions.

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3 years ago

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Wich of the following expressions are equivalent to - 2/3 ? select all that apply​

Wich of the following expressions are equivalent to - 2/3 ? select all that apply