Answer:
- x = 18
- 45°
Step-by-step explanation:
First part:
- Write out an equation to represent the image: 2x + 3x = 90
- Combine like terms: 5x = 90
- Divide each side by 5 to cancel out the 5 next to x. It should now look like this: x = 18
Second part:
- 90 ÷ 2 = 45°
I hope this helps!
Answer:
The equation of this line would be y = -8
Step-by-step explanation:
Since y = 9 is a horizontal line, the parallel line must also be horizontal. All horizontal lines can be written as y = (a number). That number can be found as the y-coordinate in the ordered pair, which is -8.
y = -8
Answer:
sum of angles = 40 + (8x + 4) + (3x + 4) = 180
Collecting all similar terms, the equation above becomes
11x + 8 = 140 ---> x = 12
Therefore. angle S = 3x + 4 = 3(12) + 4 = 40
Answer:
y = -3x - 8
Step-by-step explanation:
Use point slope formula
(y - 4) = -3(x - (-4))
y = -3x - 12 + 4
y = -3x - 8
Answer:
Step-by-step explanation:
If it is, the first and last terms are perfect squares, and the middle term is twice the product of the roots of those squares.
16x^ = (4x)^2 . . . . a perfect square
49 = 7^2 . . . . . . . a perfect square
-2(4x)(7) = -56x . . . . . matches the middle term, so the factoring is ...
16x^2 -56x +49 = (4x -7)^2
_____
The sign in the binomial factors is the same as the sign of the middle term of the trinomial.