Answer:
(6x+10)°=(6x+10)°[vertically opposite angle]
now,
6x+10+10x+10=180°[being cointerior angle]
16x=180-20
x=160%16
x=10°
Answer:
27
Step-by-step explanation:
Plug in 12 every time you see "x". When you do this it should be f(12) = 3(12) - 9 = 36 - 9 = 27.
Hope this helped :)
Answer:x=2.6
Step-by-step explanation:
Simplifying (5x + 15) = 28 Reorder the terms: (15 + 5x) = 28 Remove parenthesis around (15 + 5x) 15 + 5x = 28 Solving 15 + 5x = 28 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-15' to each side of the equation. 15 + -15 + 5x = 28 + -15 Combine like terms: 15 + -15 = 0 0 + 5x = 28 + -15 5x = 28 + -15 Combine like terms: 28 + -15 = 13 5x = 13 Divide each side by '5'. x = 2.6 Simplifying x = 2.6
Answer:
A. (x - 4)² = 3
Step-by-step explanation:
You need to change the equation so that you can make a square. To get a square, you need to analyze the terms.
x² has a a coefficient of one, so you don't have to worry about that.
13 is going to be changed so that it can be a square.
8x is what you should be looking at. For a square, the middle term is the number multiplied by 2. This means that the square was (x - 4)².
A square, when expanded, has the square of the number as the last term. This means that your last term should be 16. You need to add 3 to both sides of the equation to make this true.
x² - 8x + 13 = 0
x² - 8x + 13 + 3 = 0 + 3
x² - 8x + 16 = 3
(x - 4)² = 3
Either 12:24, or, simplified, 1:2.
