All Answers 355975 Answers

16 x 35 = 560

That is fine as you have it.

Are you just simplifying the expression? Just combine like terms. 

3x+4y-5y (4-5=-1)

3x-1y

Pi is a infinite number. Which means its a number that is never ending like infinity  = ∞

π = 3.14159265359...

3.14159265359

It is infinite, but we usually assume it as 3.14.

google it

Area =Radius^2 x Pi

Just turn it upside down =5/4

Mean = 809/11≈73.545

Mwdian=80

 I think the answer is 19.

In the complex number,  10 + 4i,  the real part is  10  and the imaginary part is  4i.

When two sides are of equal length, what is that triangle called? Isosceles triangle!!

No triangle has sides 40, 40, and 80.

The sum of the two smaller sides must be greater than the third side.

Since  40 + 40  =  80,  no triangle will be formed. The two shorter sides "collapse" onto the longer side.

If you are talking about a square:

     When is the area of a square greater than the perimeter of the square?

If a length of a sides is  x,  then the area is  x²  and the perimeter is  4x.

      x²  >  4x

      x² - 4x  > 0

     x(x - 4) > 0

Soling this for positive values of  x:

    x > 0   and   x - 4 > 0

    x > 0   and    x > 4

which is only true when  x > 4.

What is the value of  3x + (2 - 4x)  when  x = 5?

Replace x with 5:  3(5) + (2 - 4(5)) 

                         =   15  +  (2 - 20)

                         =      15 + (-18)

                         =            -3

Since there are many types of multi-step problems, it would be best if you would give us examples of the types of problems you need to solve.

7p-3=32  Why don't you get it? Put the variable p on one side and the numbers on the other.

7p =32 + 3 I moved 3 from LHS to RHS and changed its - to +.

7p =35 divide both sides by 7.

p =35 /7

p = 5. Was that difficult?

To solve:  7p - 3  =  32

Remove numbers by using inverses:  the inverse of adding is subtracting

                                                            the inverse of subtracting is adding

                                                            the inverse of multiplying is dividing

                                                            the inverse of dividing is multiplying.

Generally, it is easier to get rid of addition and subtractions before getting rid of multiplication or division.

So, in  7p - 3  =  32

get rid of  - 3  by adding 3:

           7p - 3 + 3  =  32 + 3

                       7p  =  35

Now, since the  7 is multiplied to the  p,  get rid of this multiplication by dividing by 7:

                  7p / 7  =  35 / 7

                         p  =  5