60 because 20% is 15 so 15 x 4 = 60
Answer:
Step-by-step explanation:
since a=lw, the area is (x^2-3x+7)(x+4)
1. distribute parentheses
2. apply +(-a)=-a rule
3. Simplify
Steps to simplify:
4. Add like terms
5. Add like terms
slope 1 = 2-3 /1- -1 = -1/2 Change in A & B
slope 2 = -1-2 / -3 -1 = 3/4 Change in B & C
slope 3 = 3 - -1 / -1 - -3 = 2 Change in A & C
since slope 1 is a negative reciprocal of slope 3
the triangle is a right triangle
<h2>Key Ideas</h2>
- Linear equations
- Finding solutions to the linear equation
<h2>Solving the Question</h2>
We're given:
We can start by isolating one of the variables, like <em>y</em>:
Now we can find four solutions by plugging in any number for <em>x</em>:
First solution: (1,9)
Second solution: (2,12)
Third solution: (3,15)
Fourth solution: (4,18)
<h2>Possible Answers</h2>
First solution: (1,9)
Second solution: (2,12)
Third solution: (3,15)
Fourth solution: (4,18)
Answer:
16
Step-by-step explanation:
distance formula:
d=√((x_2-x_1)²+(y_2-y_1)²)