Wednesday

April 1, 2015

April 1, 2015

Posted by **Felicity** on Monday, March 29, 2010 at 6:41pm.

(2^3) / [(2^0)-(2^-1)]

That "-1" is a negative exponent in the last bit, just so you know.

- Maths -
**MathMate**, Monday, March 29, 2010 at 7:08pmSome of the exponential laws state that:

a^{0}=1

a^{1}=a

a^{-b}=1/a^{b}

In your case, a=2 (the base).

So these laws should enable you to evaluate each term of the denominator.

The answer should indeed be 16.

I appreciate your having inserted sufficient parentheses to render the expression unambiguous.

- Maths -
**Felicity**, Monday, March 29, 2010 at 7:14pmI hope I'm not asking too much, but it would be ace if you would type out the problem and the path to solving it just so I can compare and see where I'm going wrong?

- Maths -
**MathMate**, Monday, March 29, 2010 at 7:56pmHere it is. Post if help is needed.

(2^3) / [(2^0)-(2^-1)]

=8/(2^0-2^-1)

=8/(1- 1/2¹)

=8/(1- 1/2)

=8/(1/2)

=16

**Answer this Question**

**Related Questions**

math - please - How do we manually calculate the Present Value of annuity step ...

Algebra 1--Step-by-Step - Can someone show me how to solve these step-by-step? ...

Math - I still do not understand how to solve the following problem. Please show...

AP Calculus - High School - The Temperature T of food put in a freezer is T = (...

chemistry - What is the percent ionization of a 1.38 mol/L weak acid if its Ka...

Algebra help - f(x)=x^3-4x^2-x+4 How do I find the x-intercept for this? This is...

Maths - solve |x^2-5|=5x+9 please explain step by step how to get to the answer

8 grade math - Can somebody please help me I don't understand this problem.? ...

math - x(6x+1)<15 can some one explain the problem and answer to me step by ...

Math - Simplify the expression: (((((-18((a)^(11))((b)^(-1))((c)^(3)))/(12((a)^(...