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3 years ago

Mke y the subject of the formula. w=x^2-2yz

Mathematics

1 answer:

charle [14.2K]3 years ago

7 0

Answer:

W = x^2 - 2yz / - w

0 = x^2 - 2yz - w / +2yz

2yz = x^2 - w // 2z

y = (x^2 -w ) / 2z

So correct answer is D

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loris [4]

Answer:

Convert the fraction to a decimal, then multiply by 100100.

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Step-by-step explanation:

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Read 2 more answers

Find the limit............

liubo4ka [24]

Answer: $-\frac{9}{x^2}$

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

Work Shown:

$\displaystyle \lim_{\Delta x \to 0^{+}} \frac{\frac{9}{x+\Delta x} - \frac{9}{x}}{\Delta x}\\\\\\\displaystyle \lim_{\Delta x \to 0^{+}} \frac{\frac{9x}{x(x+\Delta x)} - \frac{9(x+\Delta x)}{x(x+\Delta x)}}{\Delta x}\\\\\\\displaystyle \lim_{\Delta x \to 0^{+}} \frac{\frac{9x-9(x+\Delta x)}{x(x+\Delta x)}}{\Delta x}\\\\\\\displaystyle \lim_{\Delta x \to 0^{+}} \frac{9x-9x-9\Delta x}{x\Delta x(x+\Delta x)}\\\\\\$

$\displaystyle \lim_{\Delta x \to 0^{+}} \frac{-9\Delta x}{x\Delta x(x+\Delta x)}\\\\\\\displaystyle \lim_{\Delta x \to 0^{+}} \frac{-9}{x(x+\Delta x)}\\\\\\\displaystyle \frac{-9}{x(x+0)}\\\\\\\displaystyle -\frac{9}{x^2}\\\\\\$

The trick here is to first simplify the expression so that the $\Delta x$ term in the very lower denominator cancels out. This is to avoid dividing by zero. Once this division by zero error is avoided, we can replace the delta x term with 0 and evaluate the limit as $\Delta x$ approaches 0 from the right or positive direction.

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3 years ago

Petra is going to do a science experiment she will plant seeds in nine different pots and places the pots in different locations

Rufina [12.5K]

Answer:

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Step-by-step explanation:

word your question a little better next time this was almost illegible.

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3 years ago

How am I suppose to solve? Did I circle the right answer? <br> I circled D <br> A=pl over R

ZanzabumX [31]

First, multiply both sides by A
AR= pL

To solve for A, we must isolate it so divide both sides by R
A= (pL)/R

Final answer: D

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3 years ago