Calculus

They are not equal.

There are 10 millimetres in one centimetre. Therefore, 9 centimetres is equal to 9 x 10 = 90 millimetres.

pi (r^2)

Placing a question mark at the end of a list of expressions or numbers does not make it a sensible question. Try to use a whole sentence to describe what it is that you want answered.

There is no common prime factor between the denominator and numerator, in other words, when their GCF is 1.

Acute.

128 quarts

2(2x^3 - 140x + 147)

go to http://webmath.com/. it helps a lot.

It is: 3y-6

One possibility: 9 + 99/99 = 10

h+1.5=8.4

subtract 1.5 from both sides

h=6.9

The derivative of y=arcsin(4x) is dy/dx = 4/sqrt(1-16x2).

It means that you multiply some quantity by 2.

Step 1: 4n=12

Step 2: divide both sides by 4

Step 3: 4n/4 = 12/4

Step 4: reduce

Step 5: n=12/4

Step 6: n=3

how to figure things out using known rules

2

x + 1/3 = 144
solve for x
x = 144-1/3
change the fraction to a decimal
x = 144-0.333
x= 143.667

0.7 x 8 = 5.6

4

-7t = 42

Multiply each side by -1:

7t = -42

Divide each side by 7:

t = -6

(x-2) is not a factor of the numerator and so y tends to minus infinity as x approaches 2 from below. As x approaches 2 from above, y tends to plus infinity. There are, therefore, no maximum or minimum values for y.

Zero is the additive identity - add zero to any number and you'll get that number! In case you're wondering, there's a multiplicative identity too: 1.

A function has an input and an ouput. Each input can only have one output.

Examples of functions:

x = y

y = x2

y = cos(x)

where y is the output and x is the input.