Explain why molecules do not have electric charges

Mathematics

1 answer:

Tomtit [17]3 years ago

6 0

Because, the total number of electrons is equal to the number of protons.

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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 $f(x)=\frac{1}{x}$

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

Then, $f'(x)=\frac{-1}{x^2}$

7 0

3 years ago

Question 2 (1 point)

nikdorinn [45]

Answer: 24 hours - no; because depending on where you are on Earth, you have a different amount of sunlight.

Step-by-step explanation:

The day-night cycle is a complete day or a complete rotation of the earth around its axis. This takes 24 hours which is why 24 hours is the length of a full day.

People around the world however, do not get the same amount of sunlight or darkness and this is because of where they are on Earth. Due to the way the planet is tilted on its axis, some areas see sunlight more than other in a period and others see more darkness.

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3 years ago

A store is having a sale where school supplies are 30% off their original price. A backpack is on sale for $11.20. What was the

Mrac [35]

To find the original price, you could use a variable to represent the original price in this equation;

Let p represent the original price

.70 × p=11.20

to solve this, we'd isolate the variable (p)

p=11.20 ÷.70

p=16

The original price was $16

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3 years ago

An arc of length 8 inches. Is intercepted by a central angle in a circle with a radius of 3 inches. What is the measurement of t

nevsk [136]

Answer:

the answer is 12

Step-by-step explanation:

7 0

3 years ago

Evaluate u+ xy for u=9, x=9, y=7

Bad White [126]

U+xy
On replacing for u, x and y.
=9+9*7
=9+63
=72

5 0

3 years ago