Calculus

78 - (-49) is the same as 78 + 49 which equals 127

There is only one, Newton.

Its area is equal to its length, multiplied by its height

Think of a pizza that has 12 slices. You will eat the slices from the result of your division.

1. In the first example, lets say you eat 3 out of the 12 slices. That is expressed as 3/12 in the math world.

1. Second example will be 0 divide by 12 (0/12 or zero divided by 12). This means you will get zero of the 12 slices. You have no slices to eat.

2. Third example is division by zero (12/0). First of all this does not exist. You cannot get 12 slices from a pizza that has 0 slices. Think of this as you got to the pizza box and you WANTED to eat 12 slices but all your friends ate all the slices before you. The pizza is gone and does not exist anymore. So 12/0 does not exist in the math world.

Dividing by 0 is undefined. It's not possible.

300/1118=

.268 seconds

3 * x * x * x * x

what

1.5 hours x 17 days = 25.5 hours = 25 hours 30 minutes

y = -2x + 6

slope = m = -2 = -2/1 = rise/run

y-intercept: 6

x-intercept: 3

y = 0

0 = -2x +6

0 + 2x = -2x + 2x + 6

2x = 6

2x/2 = 6/2

x = 3

So we have two points (3, 0) and (0, 6). We can find another point using the slope -2/1.

Use the point (0, 6):

(0 + 1, 6 - 2) = (1, 4)

Draw the line that passes through the points (0, 6), (1, 4), and (3, 0).

If the "8 by 8 octagon" refers to the distances between its opposite sides rather than opposite vertices (its principal diagonals), then the side lengths are 8*[sqrt(2) - 1] units of length.

Practice a lot!

Taking the question literally, the answer would be: it is a polynomial expression in the variable x. When factored, x4 - 16 = (x2 - 4)(x2 + 4) = (x - 2)(x + 2)(x2 + 4)

3x^2+48x+192=3(x^2+16x+62).

You can factor the part in the parentheses using the quadratic formula: x= (-b[+-]Sqrt[b^2-4ac])/(2a).

2(x^2 + 2)(x + 3)

1/3x + 6 = 9 Restating the problem

x + 18 = 27 I multiplied by 3

x = 9 I subtracted 18 from 27

-70

66

739212

4.5

Pentagon.

First, form a square for x. Because the x2 term has a coefficient of one, this can be done by taking the square of half of the coefficient of the x1 term and adding it to the "x" side of the equation. In this case, half of 4 is two, squared is four. So, add four to both sides of the equation.

y+5+4=x2+4x+4

Now, simplify the square.

y+9=(x+2)2

Now solving for y yields the following:

y=(x+2)2-9.

Possibly. You also have to be good at and enjoy engineering concepts which do involve math.

the answer is 6. add 2x to each side, you get 42=7x. divide 42 by 7. not difficult, this is a basic question, go to extra help or something at school.