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polet [3.4K]
3 years ago
13

(2,7);y= 1/2x -11 please im dying

Mathematics
2 answers:
goldenfox [79]3 years ago
7 0

y  = 1/2 x to the second power - 11x + 27


Nuetrik [128]3 years ago
4 0

y = mx + b

"m" is the slope, "b" is the y-intercept

You need to find "m" and "b"


When lines are perpendicular, they have opposite slopes (the sign and number is flipped)

For example:

slope is 2

perpendicular line's slope is -1/2

slope is -4/5

perpendicular line's slope is 5/4


The given line's slope is 1/2, so the perpendicular line's slope is -2.

y = -2x + b

To find "b", you can plug in the point (2,7) into the equation


y = -2x + b

7 = -2(2) + b

7 = -4 + b    Add 4 on both sides

11 = b


y = -2x + 11

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denpristay [2]

Answer:

y = ±√(x-16)

Step-by-step explanation:

To find the inverse of an equation, swap the x- and y-variables:

y = x² + 16

x = y² + 16

Then, solve for the y-variable:

x = y² + 16

y² = x - 16

y = ±√(x-16)

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pickupchik [31]

Answer: first option.

Step-by-step explanation:

The ratio of the area of the triangles can be calculated as following:

ratio_{(area)}=(\frac{l_1}{l_2})^2

Where l_1 is the lenght of the given side of the smaller triangle and l_2 is the lenght of the given side of the larger triangle.

Therefore:

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It can be written as following:

ratio_{(area)}=49:64

The ratio of the perimeter is:

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It can be written as following:

ratio_{(perimeter)}=7:8

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