Answer:
-14251
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
Step-by-step explanation:
<u>Step 1: Define</u>
<em>Identify.</em>
<em>x</em> = 3
<em>y</em> = 28
xy - 538y + x⁶
<u>Step 2: Evaluate</u>
- Substitute in variables: 3(28) - 538(28) + 3⁶
- [Order of Operations] Exponents: 3(28) - 538(28) + 729
- [Order of Operations] Multiply: 84 - 15064 + 729
- [Order of Operations] Subtract: -14980 + 729
- [Order of Operations] Add: -14251
To answer this question you will convert the mixed number into an improper fraction. To do this you have to understand that The two wholes in the mix number each equal 3/3. This would give you 6/3 for the two wholes. Add the 6/3 to the 2/3 that are there in the fraction, and you will have 8/3. the quotient(answer to a division problem) is 8/3 as a fraction.
Answer: 22 minutes
Step-by-step explanation: 500-170 means that he drained 330 gallons of water so 330 divided by 15 gallons a minute so you get 22 so it takes 22 minutes to have 170 gallons left in the pool
If you know calculus, you can take the derivative and find the critical point.
The simpler method would be to complete the square. We have
The first term will always be negative, so whenever it vanishes, we're left with the maximum value at
, so the answer is C.
5.3 + (w+1.2)
Remove the parenthesis because there’s no distribution involved...
5.3+w+1.2
Add 5.3 and 1.2
(5.3+1.2)+w
6.5+w
Your answer is *6.5+w* the number does not have a variable (w) so we cannot solve any further ^^