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3 years ago

Values that are solutions to the inequality x2 + 3x – 4 > 0.

Mathematics

1 answer:

natka813 [3]3 years ago

8 0

$x^2 + 3x - 4 > 0\\
x^2-x+4x-4>0\\
x(x-1)+4(x-1)>0\\
(x+4)(x-1)>1\\
x\in(-\infty,-4)\cup(1,\infty)$

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Vavilen inflated a huge balloon in 19 minutes. Then he poked a hole in the balloon so that it slowly leaked air out until it was

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Considering balloon to be an spherical object

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After 19 minutes ,If radius of balloon changes from r to R, the Volume changes from V to V'.

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As given,rate at which the air leaked out of the balloon (in liters of air per minute) was half of the rate at which Vavilen inflated the balloon.

Also, $\frac{dR}{dt}=2 \times \frac{dr}{dt}$

Now, again the radius changes from R to r.So, Volume changes from V' to Back to V.

Time taken by the balloon to deflate = 38 minutes

But there is no relation between time and volume of Balloon.

So, we can't predict at which rate balloon is deflating or inflating.Apart from the statement given in Question: $\frac{dR}{dt}=2 \times \frac{dr}{dt}$

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Mrac [35]

Answer:

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Step-by-step explanation:

Given data

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inna [77]

Answer:

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3 years ago

The function f(x) represents the time it takes an airplane to travel east. The function g(x) represents the time it takes an air

tensa zangetsu [6.8K]

The total time taken for round trip will be: (f+g)(x) = 14x+11

Step-by-step explanation:

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Hence,

The total time taken for round trip will be: (f+g)(x) = 14x+11

Keywords: Functions, variables

Learn more about functions at:

#LearnwithBrainly

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