Answer:
57
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>
n² - m
m = 7
n = 8
<u>Step 2: Evaluate</u>
- Substitute: 8² - 7
- Exponents: 64 - 7
- Subtract: 57
Answer:
C
You have to check which of numbers is the lowest.
Cheers :D
Answer:(-5/16)x^2 +(5/2)x
Step-by-step explanation:
Step-by-step explanation:
length = x - 5
width = 2x
2x(x-5) = 150 m^2
2x^2 - 10x = 150 m^2
2x^2 - 10x - 150 = 0
(x=11.51 or x = -6.513)
if you wanna check,
2(11.51) × (11.51-5) = 150
23.02 × 6.51 = 150
149.8602 = 150
I'm not sure if its correct though^^
All the angles make a full circle which needs to equal 360 degrees.
Add all the angles together to equal 360:
X + (x-10) + (4x-20) +(2x-10) + (x +10) = 360
Combine like terms:
9x -30 = 360
Add 30 to both sides:
9x = 390
Divide both sides by 9:
X = 390/9
X = 43.3333. ( 43 and 1/3)
