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Mathematics

1 answer:

Minchanka [31]1 year ago

7 0

Answer:

2nd option

Step-by-step explanation:

8 $x^{4}$ - 4x³ - x + 2 - (2 $x^{4}$ - 8x² - x + 10) ← distribute by - 1

= 8 $x^{4}$ - 4x³ - x + 2 - 2 $x^{4}$ + 8x² + x - 10 ← collect like terms

= 6 $x^{4}$ - 4x³ + 8x² - 8

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Line segment XY is a directed line segment beginning at point X(9, 2) and ending at point Y(-6, 2). Find the point Z on the line

lozanna [386]

Answer:

$(-\frac{3}{8},2)$

Step-by-step explanation:

Point Z divides XY into a 5:3 ratio, so Z is 5/3 of the way from X to Y. That ratio is k, found by writing the numerator of the ratio (5) over the sum of the numerator and the denominator (5 + 3 = 8). Our k value is 5/8. Now we will find the rise and run values which is the slope of this line segment:

$m=\frac{2-2}{-6-9} =\frac{0}{-15}$