Answer:
No
Step-by-step explanation:
Use the Pythagorean Theorem to check on this.
Does 8^2 + 8^2 = 12^2? Does 64 + 64 = 144? NO. So this is not a right triangle.
Answer:
x = -30
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
Equality Properties
Step-by-step explanation:
<u>Step 1: Define Equation</u>
0.2(4x + 10) - 0.9x = 0.2(x - 6) + 12.2
<u>Step 2: Solve for </u><em><u>x</u></em>
- Distribute 0.2: 0.8x + 2 - 0.9x = 0.2x - 1.2 + 12.2
- Combine like terms: -0.1x + 2 = 0.2x + 11
- Add 0.1x on both sides: 2 = 0.3x + 11
- Isolate <em>x </em>term: -9 = 0.3x
- Isolate <em>x</em>: -30 = x
- Rewrite: x = -30
<u>Step 3: Check</u>
<em>Plug in x into the original equation to verify it's a solution.</em>
- Substitute in <em>x</em>: 0.2(4(-30) + 10) - 0.9(-30) = 0.2(-30 - 6) + 12.2
- Multiply: 0.2(-120 + 10) + 27 = 0.2(-30 - 6) + 12.2
- Add/Subtract: 0.2(-110) + 27 = 0.2(-36) + 12.2
- Multiply: -22 + 27 = -7.2 + 12.2
- Add: 5 = 5
Here we see that 5 does indeed equal 5.
∴ x = -30 is the solution to the equation.
Ok, so first you want to put x/6 off to the side. The since 2 is your first number you do the opposite and subtract 2 from the other 2. What you did to the 2 you to the 8 which means you subtract 2 from 8 and your answer is 6. Then you put your focus back to the x/6. So ignore the x. Because x/6 means divide you do the opposite of division which is multiply. so multiply 6x6, BUT the answer to 6x6 is 0. then multiply 8x6 and bring back the x so your final answer is x=48
Answer:
c.) y=2x+3
Step-by-step explanation:
the slope is 2 and the y-intercept is 3
Answer:
Step-by-step explanation:
Hello,
Dividing by 1/2 is like multiplying par 2, right ?
Dividing by 5/10 is like multiplying par 10/5, right ?
and then
as 10/10=1
Thanks