4 years ago

Solve the equation. -5/6=Z+1/8

Mathematics

2 answers:

enot [183]4 years ago

8 0

Answer:

z= −23 /24

Step-by-step explanation:

Illusion [34]4 years ago

6 0

24(-5/6=z+1/8)
-20=z+3
(Subtract 3 on both sides)
Z=-23

This is because I multiplied everything by a common fraction to start to get rid of the fractions to make the equation easier. Then I subtracted the 3 from both sides and got z=-23

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Use the algebraic procedure explained in section 8.9 in your book to find the derivative of f(x)=1/x. Use h for the small number

Triss [41]

Answer:

By definition, the derivative of f(x) is

$lim_{h\rightarrow 0}\frac{f(x+h)-f(x)}{h}$

Let's use the definition for $f(x)=\frac{1}{x}$

$lim_{h\rightarrow 0} \frac{\frac{1}{x+h}-\frac{1}{x}}{h}=\\lim_{h\rightarrow 0} \frac{\frac{x-(x+h)}{x(x+h)}}{h}=\\lim_{h\rightarrow 0} \frac{\frac{(-1)h}{x^2+xh}}{h}=\\lim_{h\rightarrow 0} \frac{(-1)h}{h(x^2+xh)}=\\lim_{h\rightarrow 0} \frac{-1}{x^2+xh)}=\frac{-1}{x^2+x*0}=\frac{-1}{x^2}$