I'll just factor the above equation.
x² + 18x + 80
x² ⇒ x * x
80
can be:
1 x 80
2 x 40
4 x 20
5 x 16
8 x 10 Correct pair
(x+8)(x+10)
x(x+10) +8(x+10) ⇒ x² + 10x + 8x + 80 = x² + 18x + 80
x+8 = 0
x = -8
x+10 = 0
x = -10
x = -8
(-8)² + 18(-8) + 80 = 0
64 - 144 + 80 = 0
144 - 144 = 0
0 = 0
(-10)² + 18(-10) + 80 = 0
100 - 180 + 80 = 0
180 - 180 = 0
0 = 0
I think the algebra tiles will not be a good tool to use to factor the quadratic equation because the equation is not a perfect square quadratic equation.
Answer:
5.14% decrease in air travelers.
Step-by-step explanation:
The percent decrease in air travelers is a
From the question, the number decreased from, 63,386 to 60,129.
The decrease is :
We subtract the numerator to get:
This finally gives:
Therefore , there was 5.14 percent decrease in air travelers in Palm Beach for 2015
Answer:
x = 5
Step-by-step explanation:
5 - 3x = - 10
<em>Subtract 5 from both sides:</em>
5 - 5 - 3x = -10 - 5
-3x = -15
<em>Divide -3 by both sides:</em>
-3x/-3 = -15/-3
x = 5
hope this helps!! p.s. i really need brainliest :)
