So if your equation was x squared +2x+1=0 you would do (x+1)(x+1)=0 because 1+1=2(x)
then you do x+1-1=0-1 to check it over
Answer:
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
Equality Properties
- Multiplication Property of Equality
- Division Property of Equality
- Addition Property of Equality
- Subtract Property of Equality
<u>Pre-Calculus</u>
Law of Sines:
- A, B, C are angle measures
- a, b, c are leg lengths
Step-by-step explanation:
<u>Step 1: Identify</u>
A = 27°, a = 11
B = x°, b = 15
<u>Step 2: Solve for </u><em><u>x</u></em>
- Substitute [LOS]:
- Cross-multiply:
- Isolate <em>x</em> term:
- Isolate <em>x</em>:
- Evaluate:
- Round:
Answer:
$728.57
Step-by-step explanation:
You work this problem out by evaluating the given formula using the numbers given in the problem statement. It tells you the principal amount is $700, the interest rate is 4% = 0.04, and the time is 1 year.
The given formula is ...
A = Pe^(rt)
Any scientific or graphing calculator can evaluate that with the numbers filled in:
700×e^(0.04×1) ≈ 728.56754 ≈ 728.57 (rounded)
_____
"e^x" is generally a function the calculator is able to perform, so you don't need to know the value of "e".
Answer:
3 but not positive
Step-by-step explanation:
Answer:
∠M = 72°
Step-by-step explanation:
L = 180 - (90 + 48) = 42
M = 180 - (42 + 66) = 72