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Luba_88 [7]
3 years ago
5

Find the difference. (−x2+9xy)−(x2+6xy−8y2)

Mathematics
1 answer:
VLD [36.1K]3 years ago
4 0

Answer:

-2x^{2}+3xy+8y^{2}

Step-by-step explanation:

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what is the slope of the line through (1,0)(1,0)left parenthesis, 1, comma, 0, right parenthesis and (3,8)(3,8)
77julia77 [94]

The slope of the line passing through (1 , 0) and (3 , 8) is 4.

Slope, commonly represented by the letter m, is a value that describes the steepness and direction of a line. The slope of a line is also called its gradient or rate of change.

It is the vertical change in y divided by the horizontal change in x, sometimes called rise over run. The slope formula uses two points, (x_{1}, y_{1} ) and (x_{2}, y_{2} ), to calculate the change in y over the change in x.

m=\frac{y_{2}-y_{1}  }{x_{2}-x_{1} }     where

x_{1} = 1

y_{1} = 0

x_{2} = 3

y_{2} = 8

Substituting the values,

m=\frac{y_{2}-y_{1}  }{x_{2}-x_{1} } =\frac{8-0}{3-1} =\frac{8}{2}=4

Hence, he slope of the line passing through (1 , 0) and (3 , 8) is 4.

For more example on slope of line, visit brainly.com/question/3493733.

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7 0
1 year ago
You spin each spinner and find the sum. How many different sums are possi
kumpel [21]

Answer:

Step-by-step explanation:

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3 0
2 years ago
On Monday, the office staff at your school paid$8.77 for 4 cups of coffee and 7 bagels. On Wednesday, they paid $15.80 for 8 cup
IgorC [24]
Set up 2 different equations for each day and then solve using substitution or elimination
4 0
2 years ago
Find BC please in the picture
tatiyna

B. 25 Km. The measure of BC is 25 km.

The easiest way to solve this problem is using the cosine theorem c = √a²+b²-2ab*cos A.

BC = √AC²+AB²-2(AC)(AB)*cos A

BC = √(21km)²+(14km)²-2(21km)(14km)*cos 89°

BC = √441km²+196km²-588km²*(0.017)

BC =√637km²-10.26km²

BC = √636.74km²

BC = 25.03km ≅ 25

7 0
3 years ago
Can someone please help meee?
qwelly [4]

Answer:

c.

Step-by-step explanation:

6 0
2 years ago
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