Answer:
x = 12
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
<u>Algebra I</u>
- Equality Properties
- Combining Like Terms
Step-by-step explanation:
<u>Step 1: Define</u>
-2(5x - 5.5) + 8 = -9x + 2 - (-5)
<u>Step 2: Solve for </u><em><u>x</u></em>
- Distribute: -10x + 11 + 8 = -9x + 2 + 5
- Combine like terms: -10x + 19 = -9x + 7
- Add 10x to both sides: 19 = x + 7
- Subtract 7 on both sides: 12 = x
- Rewrite: x = 12
Answer:
An advantage of using observation is it gives you more details than assuming or modeling would.
A disadvantage is how long it takes to get your answer.
The sample is the students and the population is 10.
If 3 out of 10 students use social media then 30% of the schools population probably uses social media.
Step-by-step explanation:
Answer:
Length of smaller side = 15 inches
Length of bigger side = 36 inches
Length of hypotenuse = 39 inches
Step-by-step explanation:
Given:
Length of smaller side = a
Length of bigger side = (a + 21) inches
Length of hypotenuse = (a + 24) inches
Find:
Length of all side
Computation:
Using Pythagorean theorem
Hypotenuse² = Base² + Perpendicular²
(a+24)² = a² + (a+21)²
a² + 576 + 48a = a² + a² + 441 + 42a
a² - 6a - 135 = 0
(a-15)(a+7)
So
a = 15 inches a = -7 inches
So,
Length of smaller side = a = 15 inches
Length of bigger side = (a + 21) inches = 15 + 21 = 36 inches
Length of hypotenuse = (a + 24) inches = 15 + 24 = 39 inches
Answer: yes it is
Step-by-step explanation:
Answer:
A, B, and C
Step-by-step explanation:
an equation has an equal sign (=).
