4^2-(2•2^4)
i got -16 if i'm wrong please explain. i also got -240 doing it a different way, PLEASE help!
The choices are
-16
30
-240
224
Please help!
Answer is A
You were Write on -16
Thanks!!!!
Your Welcome
A small company invested $29,000 by putting part of it into a savings account that earned 3.9% annual simple interest and the remainder in a risky stock fund that earned 12.4% annual simple interest. If the company earned $1,513.50 annually from the investments, how much was in each account?
To find the value of the expression 4^2 - (2 * 2^4), let's break it down step by step:
Step 1: Exponents
First, let's simplify the exponent expression. Recall that a number raised to the power of 2 means multiplying the number by itself.
4^2 = 4 * 4 = 16
2^4 = 2 * 2 * 2 * 2 = 16
After these simplifications, the expression becomes:
16 - (2 * 16)
Step 2: Multiplication
Next, calculate the multiplication:
2 * 16 = 32
Now the expression is simplified to:
16 - 32
Step 3: Subtraction
Finally, subtract the value:
16 - 32 = -16
So, the correct value of the expression 4^2 - (2 * 2^4) is -16.