-4x² + 8x - 8 - (10x² - 2x - 8) = -14x² + 10x
Answer:
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Step-by-step explanation:
Let
A------> <span>(5√2,2√3)
B------> </span><span>(√2,2√3)
we know that
</span>the abscissa<span> and the ordinate are respectively the first and second coordinate of a point in a coordinate system</span>
the abscissa is the coordinate x<span>
step 1
find the midpoint
ABx------> midpoint AB in the coordinate x
</span>ABy------> midpoint AB in the coordinate y
<span>
ABx=[5</span>√2+√2]/2------> 6√2/2-----> 3√2
ABy=[2√3+2√3]/2------> 4√3/2-----> 2√3
the midpoint AB is (3√2,2√3)
the answer isthe abscissa of the midpoint of the line segment is 3√2
see the attached figure
AC = AB + BC
= (x + 2) + (7x - 3)
= (x + 7x) + (2 - 3)
= 8x - 1
AC = 8x - 1
QR = PR - PR
= (13y + 25) - (8y + 5)
= 13y + 25 - 8y - 5
= 13y - 8y + 25 - 5
= 5y + 20
QR = 5y + 20
Hence, simplified expression for AC = 8x - 1
Simplifie expression for QR = 5y + 20
Answer:
When x = 5, y = 7000 * 5 + 125000 = $160,000.
When x = 10, y = 7000 * 10 + 125000 = $195,000.