Answer:
-1/32
Step-by-step explanation:
To evaluate the expression, substitute x = 2 and y = -4. Then use exponent rules to simplify. Review the rules here:
To evaluate or simplify expressions with exponents, we use exponent rules.
1. An exponent is only a short cut for multiplication. It simplifies how we write the expression.
2. When we multiply terms with the same bases, we add exponents.
3. When we divide terms with the same bases, we subtract exponents.
4. When we have a base to the exponent of 0, it is 1.
5. A negative exponent creates a fraction.
6. When we raise an exponent to an exponent, we multiply exponents.
7. When we have exponents with parenthesis, we apply it to everything in the parenthesis.
We will use these rules to simplify.
The answer is C
Since we don’t know how much supplies cost in general it would be better to first find out how much the painter charges for the 5 hours
15.28 x 5 = 76.45$
Now that we know that we just need to solve for the difference. So subtract the total cost to the amount he charged for 5 hours of work
157.18 - 76.45 = 80.73
Hi!
Let's write an equation to solve this.
= ?
Solve
= ?
= ?
310
The answer is $310.
Hope this helps! :)
-Peredhel
We can create an equation.
What percent is x
'of' indicates multiplication
'is' indicates an equal sign
So we have:
x * 42 = 28
42x = 28
Divide 42 to both sides:
x = 2/3
Multiply by 100 to convert to a percentage.
x = 66 2/3 %
<u>So with more than one pair of parentheses, you must start from the inside and make your way outside.</u>
So firstly, distribute -3 to (2x + 4):
![6+2[-8-6x-12]+10x](https://tex.z-dn.net/?f=6%2B2%5B-8-6x-12%5D%2B10x)
Next, combine like terms:
![6+2[-6x-20]+10x](https://tex.z-dn.net/?f=6%2B2%5B-6x-20%5D%2B10x)
Next, distribute 2 to [-6x - 20]:
Lastly, combine like terms and <u>your final answer will be 
</u>
