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3 years ago

12

Celine is knitting a scarf. The finished length will be 1.2 meters. So far she has knitted 0.8 meters. How many more meter does

Celine have to knit.

1 answer:

Rasek [7]3 years ago

5 0

0.4 meters i presume

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jek_recluse [69]

Answer:

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Step-by-step explanation:

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2 years ago

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Nostrana [21]

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10

Step-by-step explanation:

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2 years ago

There are 96 girls and 72 boys who want to participate in 6th grade intramurals.

Gekata [30.6K]

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Step-by-step explanation:

The GCF is 24

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3 years ago

Rewrite 302+40=342 in a different way, using the commutative of addition

bagirrra123 [75]

Answer:

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Step-by-step explanation:

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1 year ago

How to solve this?<br>\int \frac { 4 - 3 x ^ { 2 } } { ( 3 x ^ { 2 } + 4 ) ^ { 2 } } d x

ivanzaharov [21]

$\Large \mathbb{SOLUTION:}$

$\begin{array}{l} \displaystyle \int \dfrac{4 - 3x^2}{(3x^2 + 4)^2} dx \\ \\ = \displaystyle \int \dfrac{4 - 3x^2}{x^2\left(3x + \dfrac{4}{x}\right)^2} dx \\ \\ = \displaystyle \int \dfrac{\dfrac{4}{x^2} - 3}{\left(3x + \dfrac{4}{x}\right)^2} dx \\ \\ \text{Let }u = 3x + \dfrac{4}{x} \implies du = \left(3 - \dfrac{4}{x^2}\right)\ dx \\ \\ \text{So the integral becomes} \\ \\ = \displaystyle -\int \dfrac{du}{u^2} \\ \\ = -\dfrac{u^{-2 + 1}}{-2 + 1} + C \\ \\ = \dfrac{1}{u} + C \\ \\ = \dfrac{1}{3x + \dfrac{4}{x}} + C \\ \\ = \boxed{\dfrac{x}{3x^2 + 4} + C}\end{array}$

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3 years ago