3 years ago

Write in descending order. 360t + 10t3 - 120t2

Mathematics

1 answer:

erastovalidia [21]3 years ago

4 0

Answer:

30t - 120t² + 10t³

Step-by-step explanation:

30t + 10t³ - 120t²

In order of degrees of function, t³ > t² > t

So in terms of order of decreasing order, we have to rearrange the equation to

30t - 120t² + 10t³ likewise in terms if increasing degree of function,

10t³ - 120t² + 30t

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Which equation is the inverse of 2(x - 2)2 = 8(7 + y)?

Marina86 [1]

Answer:

The inverse of $2(x - 2)^2 = 8(7 + y)$ is $y=\sqrt{(4x+28)}+2$

Step-by-step explanation:

Given equation : $2(x - 2)^2 = 8(7 + y)$

$\Rightarrow \frac{2(x-2)^2}{8}=7+y\\\Rightarrow \frac{2(x-2)^2}{8}-7=y$

Replace x with y and y with x

So, $\Rightarrow \frac{2(y-2)^2}{8}-7=x\\\Rightarrow \frac{2(y-2)^2}{8}=x+7\\\Rightarrow 2(y-2)^2=8(x+7)\\\Rightarrow (y-2)^2=4(x+7)\\\Rightarrow (y-2)=\sqrt{4(x+7)}\\\Rightarrow y=\sqrt{4(x+7)}+2\\\Rightarrow y=\sqrt{4x+28)}+2$

So, Option C is correct

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