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2 years ago

3x - 5 2x + Find the perimeter

Mathematics

1 answer:

taurus [48]2 years ago

3 0

110 cm hopes this helps

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What is 16 divided by 160 equal to

nasty-shy [4]

Answer:

0.1

Step-by-step explanation:

used a calculator, that is what i got

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2 years ago

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Can we write 0 in the form of p by q?

tresset_1 [31]

Answer:

=======================

Any rational number can be written in the form of p/q as per definition of a rational number.

In case with zero, it can be:

p = 0,
q = any number other than zero.

So, we'll have:

0/any number = 0

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1 year ago

How many liters are in 2.751 ounces?

ivann1987 [24]

9.30224 x 101 Ounces

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3 years ago

How to evaluate question number 4

ANTONII [103]

There are 2 ways that spring to mind.

One is to use the definition of the derivative at a point:

$f'(c)=\displaystyle\lim_{x\to c}\frac{f(x)-f(c)}{x-c}$

In this case, $c=0$ and $f(x)=\sqrt{5-x}$ . Then

$f'(x)=-\dfrac1{2\sqrt{5-x}}\implies f'(0)=\displaystyle\lim_{x\to0}\frac{\sqrt{5-x}-\sqrt5}x=-\dfrac1{2\sqrt5}$

- - -

If you don't know about derivative yet (I would think you do, considering this is for a midterm in AP Calc, but I digress), the other way is to rely on algebraic manipulation. Multiply the numerator and denominator by the conjugate of the numerator to get

$\dfrac{\sqrt{5-x}-\sqrt5}x\cdot\dfrac{\sqrt{5-x}+\sqrt5}{\sqrt{5-x}+\sqrt5}=\dfrac{\left(\sqrt{5-x}\right)^2-\left(\sqrt5\right)^2}{x\left(\sqrt{5-x}+\sqrt5\right)}=-\dfrac x{x\left(\sqrt{5-x}+\sqrt5\right)}=-\dfrac1{\sqrt{5-x}+\sqrt5}$

This is continuous at $x=0$ , so the limit is the value of the expression at $x=0$ :

$\displaystyle\lim_{x\to0}\frac{\sqrt{5-x}-\sqrt5}x=-\lim_{x\to0}\frac1{\sqrt{5-x}+\sqrt5}=-\frac1{2\sqrt5}$

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3 years ago

How to convert 9% to a decimal

Hunter-Best [27]

First you would convert it to a fraction. 9/100

Once you do that you divide the numerator, which is 9 by the denominator, which is 100.

Then we get our answer, 0.09

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2 years ago