A triangle has 3 sides....each side measuring 0.75 inches...and the perimeter is the total of all 3 sides.
0.75(3) = 2.25 inches
I'm not 100% on this, but my answer is -4x^2 + 8x - 2. Please let me know if this is correct. If so, give me a high five and a pat on the head.
The answer to your very hard question was very hard to do but the answer is 2
Answer:
x = 14
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
- Subtraction Property of Equality<u>
</u>
<u>Algebra I</u>
<u>Geometry</u>
- Supplementary Angles: Angles that add up to 180°
Step-by-step explanation:
<u>Step 1: Define</u>
We can see from the diagram that the 2 angles are supplementary
(6x - 10)° + (7x + 8)° = 180°
<u>Step 2: Solve for </u><em><u>x</u></em>
- Combine like terms: 13x - 2 = 180
- [Addition Property of Equality] Add 2 on both sides: 13x = 182
- [Division Property of Equality] Divide 13 on both sides: x = 14
Answer:
x=6
Step-by-step explanation:
sqrt (2x-3) = sqrt (3x-9)
Square each side
(sqrt (2x-3))^2 = (sqrt (3x-9))^2
2x-3 = 3x-9
Subtract 2x from each side
2x-3-2x = 3x-2x-9
-3 = x-9
Add 9 to each side
-3+9 = x-9+9
6 =x
Check solution
sqrt (2*6-3) = sqrt (3*6-9)
sqrt (9) = sqrt (9)
3=3
Solution is valid