Calculus

1/6

-3

5 + 2x ≥ 13

Subtract 5 from both sides: 2x ≥ 8

Divide both sides by 2: x ≥ 4

No. If you divide an integer by another integer, you get a rational number, by definition.
13/2 is rational because it is a ratio of two integers.

34 + y = y + 34

-6

5

I'm assuming you mean independent and dependent variables? They are usually expressed as something like y=f(x) where the variable y is dependent on the value of the x.

(2,7)

45

7

Augustin Louis Cauchy was born on August 21, 1789.

3x+y=5(4x-7y)=-10

3x+y=20x-35y=-10

-3x -3x

y=17x-35y=-10

-y -y

17x-36y=-10

sorry but that's as far as i could get :(

0 because y=1 can be written as y = (0)x +1 and its gradient is 0.

885,735

6.29 x 25 = 157.25

A quadrillion

There must be some operators between 16 and 10 and also between 10x and 14x, please clarify

The value of x is 1

Unfortunately, limitations of the browser used by WA means that we cannot see most symbols. It is therefore impossible to give a proper answer to your question. While you HAVE tried to do so, the end of the question is missing some symbols. Please resubmit your question spelling out the symbols as "plus", "minus", "equals" etc.

9

Add 5 to each side. You'll be left with 7x minus 1 equals 34. Next, you subtract one from each side and you'll be left with 7x equals 35. Finally, you divide each side by 7 and you get x equals 5

f(2) = 8 - 26 + 18 = 0

(x-2) is a factor of f(x), x = 2

f(x) = (x-2)(x2 + 2x -9)

x2 + 2x - 9 = 0

(x+1)2 - 10 = 0

x + 1 = +-sqrt10

x = -1 + sqrt10, -1 - sqrt10, 2

236.121053

8