Starting from the Pythagorean identity, we deduce
If we plug in the value 7/10 for sin(x), we have
14/112 = 7/56 = 1/8
Hope it helps
Answer:
-33
Step-by-step explanation:
2/3 (x + 6) = - 18
Multiply by 3/2 on each side
3/2 *2/3 (x + 6) = - 18*3/2
x+6 = -27
Subtract 6 from each side
x+6-6 = -27-6
x = -33
Answer:
(-3, 4)
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>Algebra I</u>
- Terms/Coefficients
- Solving systems of equations using substitution/elimination
Step-by-step explanation:
<u>Step 1: Define Systems</u>
y = -x + 1
2x + 3y = 6
<u>Step 2: Solve for </u><em><u>x</u></em>
<em>Substitution</em>
- Substitute in <em>y</em>: 2x + 3(-x + 1) = 6
- Distribute 3: 2x - 3x + 3 = 6
- Combine like terms: -x + 3 = 6
- Isolate <em>x</em> terms: -x = 3
- Isolate <em>x</em>: x = -3
<u>Step 3: Solve for </u><em><u>y</u></em>
- Define equation: y = -x + 1
- Substitute in <em>x</em>: y = -(-3) + 1
- Simplify: y = 3 + 1
- Add: y = 4
C. because in order for it to be a quadratic the equation has to have a squared value
(ax2+bx+c)