Answer:
540°
General Formulas and Concepts:
<u>Math</u>
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
<u>Geometry</u>
- Sum of Angles: 180(n - 2)°
Step-by-step explanation:
<u>Step 1: Define</u>
We are given a 5-sided polygon (irregular pentagon)
n = 5
<u>Step 2: Find Sum</u>
- Substitute in <em>n</em> [Sum of Angles]: 180(5 - 2)°
- (Parenthesis) Subtract: 180(3)°
- Multiply: 540°
In order for two lines to be perpendicular, their slopes must multiply together to equal to negative one
So we do negative one divided by 2/5 to get the slope of the red line
Which is -5/2
To check, we do 2/5 multiplied by -5/2 which equals to -1 so our answer is correct
The constant of proportionality is 2.5
X² - 7 x = - 5
x² - 7 x + 5 = 0
The standard form is : ax² + b x + c = 0
a = 1; b = -7; c = 5
x 1/2 = (-b+/- √(b²-4 ac) / 2a
x 1/2 = (7+/-√49 - 20) / 2 = ( 7 +/-√29 ) / 2
Answer: B ) 7 plus or minus the square root of 29 divided by two.
awnser 4x^2 + 20xy + 25y^2
