The answer would be A.
In order to solve this you have to do Pythagorean theorem which is a(squared) + b (squared) = c (squared)
Answer:
Step-by-step explanation:
Given
The attached triangle
Required
Find BD and BC
Solving BD
Considering angle at D, we have:
Solve for BD
So:
To solve for BC, we make use of Pythagoras theorem
This gives
Collect like terms
Take square roots
Expand
Split
Hi there!
I'm going to assume you mean m^2 + m - 20.
The factor of this is (m + 5)(m - 4)
And I found this by finding what two numbers add to 1 and multiply to -20, which is 5 and -4.
Now if you FOIL this, (First, outer, inner, last terms) you should come to the initial equation.
(m + 5) * (m-4)
m * m = m^2
5 * m = 5m
m * -4 = -4m
5 * -4 = -20
So, in combining like terms, you'd get m^2 + 1m -20.
http://www.mathwarehouse.com/algebra/factor/how-to-factor-trinomials-step-by-step.php - This link might help you figure out how to factor. Good luck!
The answer is $6000 in the personal finance class for apex.
Answer:
x^2-12x+36
Step-by-step explanation:
The first step in solving this equation is to expand the square which makes the equation (x-6)(x-6). Then you distribute the x to both parentheses which leaves you with x^2-6x, and then you distribute the 6 to both parentheses which gives you 6x+36. Then add both binomials which leaves you with x^2-12x+36. The reason it is +36 and not -36 is because you are multiplying a negative 6 by another negative 6.
