Answer:
18
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>
4a - 2
a = 5
<u>Step 2: Evaluate</u>
- Substitute in <em>a</em>: 4(5) - 2
- Multiply: 20 - 2
- Subtract: 18
That would be -21.
-6-15= -6+(-15)
15+6 is 21. They were both negatives, so we stick with the negatives and get -21
Answer: f(x) = 8x -1
Step-by-step explanation:
( f + g )x = 3x + 5x + 8 - 9
( f + g)x = 8x - 1
Answer:
y = -2x - 3
Step-by-step explanation:
y=mx+b
The slope is already given so m = -2
plug in the point into the equation
y=-1
x=-1
-1 = -2(-1) + b
solve and you get
y = -2x - 3
35sq. units
Area of a triangle=0.5 base ×height
= 0.5(10)×7.
= 35