Calculus

There's nothing there to solve, because no statement is made.

If all of that were equal to something, then we could get some exercise

figuring out what 'x' must be to make it a true statement. But in its present

form, it doesn't say anything. It's just a number that depends on what 'x' is.

Yes because when it is rearranged in the form of 3x2-6x+2 = 0 the discriminant b2-4ac of this quadratic equation is greater than zero which means that it will have two solutions.

Using the quadratic equation formula will give these solutions for x as 0.422 or 1.577 both correct to three decimal places.

y = 2x + 1 IS a linear equation!

Because x has historically been used to describe "the unknown" and that's exactly what an independent variable is, an unknown. y was used because it follows x.

You would also need to know what area each brick covers. Or what is the length and width of each brick - you can then figure out the area from that.

A metre is a unit of distance. A square foot is a unit of area. The two units are therefore incompatible.

It means that you multiply 3 times x times c. It is also possible that the "x" is a multiplication sign, in which case you only multiply 3 times c.

8

This is called an ellipse.

It is the logarithmic function.

(cos x sin x) / (cos x sin x) = 1. The derivative of a constant, such as 1, is zero.

length times width
Measure the length and the width in metres and then multiply both

Because it is not represented as a ratio of two integers, one over the other.

And given the decimal expansion of it, it does not terminate, nor does any sequence of digits repeat forever at the end.

6x-20 = 34

+20 +20

6x = 54

/6 /6

x = 9

4x + 3 = 11

6x - 9 = 3

17y +4 = 21

8y - 19 = -11

x/3.2<7.4 is equal to {x|x<23.68} :) Hope it helps

3x3 + 15x2 + 18x = 0

This has one obvious solution, x = 0. Also, if you assume x != 0 (x is not equal to 0), and divide everything by 3x:

x2 + 5x + 6 = 0

can be factored to

(x + 2)(x + 3) = 0

So, two other solutions are x = -2, and x = -3.

x+y=5

If you mean to say (x^2)-2x+4=0

then there is no solution for x because the equation never makes it to 0

If you mean to say 2x-2x+4=0

then there is no solution for x because it is a horizontal line at Y=4

97x67=6499

Because without an equality sign it can not be considered to be an equation and therefore has no solution.

Multiplication and division first, addition and subtraction second.

3 + (3 x 3) - 3 + 3

3 + 9 - 3 + 3 = 12

Rearrange the equations to show 6y = 3x + 14 and 9y = -18x - 14.

This gives you the gradients of the two straight lines.

y = 3/6 x + 14/6 and y = -18/ 9 x - 14/9.

The first shows a gradient of 3/6 and the second is -18/9. These are called the co-efficients of x in each equation.

The two gradients cancel down to 1/2 and -2.

One is the negative reciprocal of the other, so the two lines are not parrallel. They a perpendicular to each other.

at the center of the earth, simple pendulmn has not any gravitational force(if we thought,the earth is an etended object) so at the center the gravitational acceleation is about 'zero' and that's why pendulumn's time period is 'infinite'.