Answer:
0
Step-by-step explanation:
x+y=5
x^3+y^3+15xy-125
(x+y)(x^2-xy+y^2)+15xy-125
5(x^2-xy+y^2)+15xy-125
5x^2+5y^2-5xy+15xy-125
5x^2+5y^2+10xy-125
5[x^2+2xy+y^2]-125
5(x+y)^2-125
5(5)^2-125
125-125
0
The axis of symmetry of a parabola
can be found by:
Answer:
72.62m²
Step-by-step explanation:
In each graph, they give you a line.
For part A, they want you to use the <u>Distance Formula</u> which is:
(x2 is supposed to be x sub 2, but I can't put subheadings in the equation tool)
x1, x2, y1, and y2 are the coordinates of the endpoints of the segment.
For part B, they want you to use the <u>Midpoint Formula</u>, which is:
The coordinate pair you get from the Midpoint Formula is your midpoint.
Hope this helps! :)
Answer:
21x^4+6x^3-12x^2
Step-by-step explanation: