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kipiarov [429]
3 years ago
6

Please help ⚠️⚠️⚠️⚠️⚠️

Mathematics
1 answer:
Veseljchak [2.6K]3 years ago
8 0

Answer:

(1/3)²

Step-by-step explanation:

The equivalent to 3⁻² is:

(1/3)²

The first option

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Answer:

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Step-by-step explanation:

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3 years ago
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Carla is collecting rainwater in a barrel. Currently she has 18 inches of water in the barrel. The rain is falling at the rate o
olga_2 [115]

Answer: it will take 9 hours.

Step-by-step explanation:

The rain is falling at the rate of 1.5 inches per hour. This means that the height of water in the barrel is increasing in arithmetic progression.

The formula for determining the nth term of an arithmetic sequence is expressed as

Tn = a + d(n - 1)

Where

a represents the first term of the sequence.

d represents the common difference.

n represents the number of terms in the sequence.

From the information given,

a = 18 inches

d = 1.5 inches

The expression becomes

Tn = 18 + 1.5(n - 1)

For the number of hours it would take to collect 30 inches of rain in the barrel, Tn = 30

Therefore,

30 = 18 + 1.5(n - 1)

1.5(n - 1) = 30 - 18

1.5(n - 1) = 12

n - 1 = 12/1.5 = 8

n = 8 + 1

n = 9

6 0
3 years ago
I am stuck on this question do you mind checking it for me
nataly862011 [7]

Solution:

Given:

\frac{a}{b}\cdot\frac{c}{d}

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Multiplying two rational numbers produces another rational number.

Therefore, the product is a rational expression.

OPTION C is the correct answer.

4 0
1 year ago
How much money left after spending $8, $7 and $13, then received $10 and spent $15. now $12 is left. how much money did one have
Inessa [10]
$8 + $7 + $13 + 15 = $43
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i am a mathematics teacher. if anything to ask please pm me
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3 years ago
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Varvara68 [4.7K]

Answer:

ax + z = w - y \\ ax = w - y - z \\ a =  \frac{w - y - z}{x}  \\ thank \: you \:

3 0
3 years ago
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