4 years ago

Which expressions are equivalent to 2(a+3b)

Mathematics

1 answer:

Zepler [3.9K]4 years ago

6 0

Answer:

The answer to which expression is equivalent to 2(a+3b) is 2a+6b

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2x^2-5xy-y^3 if x=-3, and y=-2

docker41 [41]

2x^2-5xy-y^3 if x=-3, and y=-2

2(-3)^2- 5(-3)(-2) -(-2)^3

=2(9) - 5(6) - (-8)

= 18 - 30 + 8

= -4

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3 years ago

Rewrite the expression in terms of ln 4 and ln 5.<br> ln(400)

Rzqust [24]

4x5x20 hope that helps

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3 years ago

Three friends each have some ribbon. Carol has 90 inches of ribbon, Tino has 7.5 feet of ribbon, and baxterhas 3.5 yards of ribb

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3 years ago

Is this relation a function? explain

Anton [14]

Answer:

A function is a relation in which no two ordered pairs have the same first element. A function associates each element in its domain with one and only one element in its range. Solution: a) A = {(1, 2), (2, 3), (3, 4), (4, 5)} is a function because all the first elements are different.

Step-by-step explanation:

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3 years ago

The number of counties in state A and the number of counties in state B are consecutive even integers whose sum is 138 138. If s

ss7ja [257]

Answer:

The number of counties in state A are 70.

The number of counties in state B are 68.

Step-by-step explanation:

The number of counties in state A and the number of counties in state B are consecutive even integers whose sum is 138.

Let the two consecutive even integers be x and x+2.

As their sum is 138, we can denote this mathematically as :