Answer:
<em>-</em><em>1</em><em>5</em><em> </em><em>=</em><em> </em><em>7</em><em>n</em><em> </em><em>+</em><em> </em><em>8</em><em>n</em>
<em>-</em><em>1</em><em>5</em><em> </em><em>=</em><em> </em><em>1</em><em>5</em><em>n</em>
<em>n</em><em> </em><em>=</em><em> </em><em>-</em><em>1</em><em> </em>
<em>plz</em><em> </em><em>brainlist</em><em> me</em><em> I</em><em> need</em><em> it</em>
Answer:
Option C (2.5, 1) is the right alternative.
Step-by-step explanation:
The given points are:
A = (-1, 5) = (x₁, y₁)
B = (6, -3) = (x₂, y₂)
Now,
The midpoint on X-axis is:
= 
= 
= 
= 
The midpoint on Y-axis is:
= 
= 
= 
= 
= 
Thus the midpoint of AB is "2.5, 1".
If you know that -2 is a zero of f(x) = x^3 + 7x^2 + 4x - 12, explain how to solve the equation.
First you have to figure out what could make f(x) = 0 to get rid of the cube. I'm going to test the array of data, x = -2, x = -3, and x = -4 because this type of equation probably has more negative values given that if you plug in some values the cubed-values and squared-values will surpass the "-12". Plug this into a calculator.
x^3 + 7x^2 + 4x - 12
f(-2) = -8 + 28 - 8 - 12 = 0
So you know that when x = -2, f(x) = 0. Divide "(x + 2)" from the equation and you will get... x^2 + 5x - 6. Now this is a simple polynomial one that you can figure to be (x + 6) (x - 1) just by looking at it because -6 multiplied by 1 is negative 6 and you see 5 and know that 6 - 1 = 5.
The solution is (x + 6) (x - 1) (x + 2) meaning that when x = -6, 1, or -2, f(x) is 0.
Answer:
4.5 lbs
Step-by-step explanation:
just divide 11.25 by 2.5
