3 years ago

X^2+4x-1<4 need help with this two graphically and algebraic answers

1 answer:

5 0

U have to know that x =something or else its un aswerable

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nataly862011 [7]

Answer:

923.1927 millibars

Step-by-step explanation:

The wind velocity is given by the function:

$v(p)=5.7\sqrt{(998-p}$

#We make p the subject of the formula:

$v(p)=5.7\sqrt{(998-p}\\\\v=5.7\sqrt{(998-p}\\\\\frac{v}{5.7}=\sqrt{(998-p}\\\\\frac{v^2}{5.7^2}=998-p\\\\p=998-\frac{v^2}{5.7^2}$

#Substitute the given values in the function above to solve for p;

$p=998-\frac{v^2}{5.7^2}\\\\=998-\frac{49.3^2}{5.7^2}\\\\=923.1927\ millibars$

Hence, the air pressure is 923.1927 millibars.

7 0

3 years ago

Troyanec [42]

I believe that she should record 5.5 hours.

7 0

3 years ago

Alik [6]

Yeah that's right I'm pretty sure that's the work u do so u r not wrong ok so relax

8 0

3 years ago

Varvara68 [4.7K]

what I think is the answer is 2/3

6 0

4 years ago

murzikaleks [220]

Okay so this is your equation; 17=221/x all you need to do is multiply 221 by 17 and you'll have your answer. I hope this helps!

6 0

3 years ago