First you open 2 parenthesis with x in each one:
(x )(x )=0
Then, you place the sign of the second term (the x term) in the first parenthesis.
(x+ )(x )=0
Next, you multiply the signs of the x term and the sign of the constant (the third term).
Since + × - = -, then you place a -.
(x+ )(x- )=0
You look at the constant (-18) and the second term (3). What two numbers multiplied give you -18 but subtracted (since the signs inside the parenthesis are opposite) give you 3? Those numbers are 6 and 3.
Since the result of the substraction need to be 3, you place the 6 with the + sign and the 3 with the negative sign (if you think of it, 6-3=3 but 3-6 = -3. That's the reason behind placing the numbers)
(x+6)(x-3)=0
Therefore,
x+6=0 or x-3=0
x=-6 or x=3
Your roots are -6 and 3.
Notes before we start:
Semi-monthly means you get paid twice a week. We will find out the net pay in 2 weeks to see how much pays better.
Explanation:
Job A pays $15 an hour and whoever is working works 40 hours a week. We can multiply to find how much he/she earns in 2 weeks.
15 * 40 * 2 = $1,200
Job B pays $1,375 semi monthly which means that he/she got paid that much money in 2 weeks.
Answer:
Job B pays better.
Best of Luck!
Answer:
3
Step-by-step explanation:
Answer:
slope = 
Step-by-step explanation:
Slope formula: 
Given points:
(1, 2) = (x1, y1)
(9, 6) = (x2, y2)
To find the slope of a line, input the values of two points into the slope formula:
Solve:
6 - 2 = 4
9 - 1 = 8
Simplify:
The slope is .
Answer:
A and C
Step-by-step explanation:
Since it is isosceles two sides should be equal and we already know the perimeter is 21in.
<em>5</em>+<em>5</em>+11=21in
5+<em>8</em>+<em>8</em>=21in
