Answer:
f(-2) = 20
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>
f(x) = 8x² + 5x - 2
x = -2
<u>Step 2: Evaluate</u>
- Substitute in <em>x</em>: f(-2) = 8(-2)² + 5(-2) - 2
- Exponents: f(-2) = 8(4) + 5(-2) - 2
- Multiply: f(-2) = 32 - 10 - 2
- Subtract: f(-2) = 22 - 2
- Subtract: f(-2) = 20
Answer:
None
Step-by-step explanation:
-4x-11=2(x-3x)+13
-4x-11=2x-6x+13
-4x-11=-4x+13
-11=13
Therefore, there are no solutions for the equation as both sides will never be equal to each other.
Step-by-step explanation:
substitute 7 for x so..
(7)=10-2(7)=
10-14
the answer is A. -4
Answer:
15
Step-by-step explanation:
Answer:
D
Step-by-step explanation:
It says she spent $7.53 at the store and she bought (SOME) cereal for $3.67
so we have to find how much the 6 peaches cost. To find it out we are going to have to subtract the cereal she bought from $3.67 and the money she wasted total so its going to be D.