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elena-s [515]
2 years ago
10

Choose the correct simplification of the expression 3 times b all over a to the power of negative 2.

Mathematics
1 answer:
MAXImum [283]2 years ago
4 0

Answer:


Step-by-step explanation:

The question will look like (3b)/(a^-2)

To simplify, note the (a^-2). It is a negative, so flip the placement of the monomial. Note that the term is located in the decimal, so when it is flipped, it goes to the numerator (vice versa if it is opposite)

(3b)/(a^-2) = (3b)(a²)

3a²b, or (A) is your answer choice

~

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2x(8+7)-6/2x(9-3) evaluate
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Ok so assuming that the 'x' means multiply and not 'x' as in placeolder we do

PEMDAS
parenthaseees
exponents
multipilcation or division
additon or subtraction

parethasees simplify first
(8+7)=15


(9-3)=6

now we have
2x(15)-6/2x(6)
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2 years ago
Due SOON!!
DedPeter [7]

Answer:

?=19

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5/6x - 1/5x = 19

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6 0
2 years ago
1 grams = to ? milligrams
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kicyunya [14]

Answer:

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5a + 9b = 144

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5a = 144 - 9b

a = 144/5 - 9b/5

a = 28.8 - 1.8b

We now substitute this into the first equation

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6 0
3 years ago
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