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zaharov [31]
4 years ago
8

What is an equation of the line that is perpendicular to y- 4 = 2(x-6) and

Mathematics
1 answer:
Ludmilka [50]4 years ago
7 0

Answer:

D. Y+5=-(1/2)*(x+3)

Step-by-step explanation:

Perpendicular Lines are those with the following condition:

y=a*x+b (1)

y=c*x+d (2)

Where 'a' and 'c' are the respective slope

If These two lines are perpendicular, then

a=- 1/c

Equation (1) for our case is written as y=2x-8, meaning that a=2 and b = -8

Using those principles we have that the slope for our needed line ('c') has to be -(1/2).

Now we most use the given point to find the remaining term of the equation (d) so, evaluate (-3,-5) in eq (2) to have this:

-5=(-1/2)*(-3)+d

resulting that d=-5-(3/2)

Eq (2) is written now as the following: y= (-1/2)*x - (5+3/2)

Rearranging terms, we have the following:

y+5=(-1/2)*x-(3/2)

where you can obtain a more pretty expression:

y+5=(-1/2)*(x+3)

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3 years ago
Given the following formula solve for a <br><br>s = a+b+c/2
Hatshy [7]

Answer:

a=2s-b-c

Step-by-step explanation:

Given formula:

s=\frac{a+b+c}{2}

To solve for a

In order to solve for a we will try to isolate a on one side of the equation.

Steps to isolate a.

1) Multiplying both sides by 2 to remove fractions.

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2s=a+b+c

2) Subtracting both sides by b

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3) Subtracting both sides by c

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Thus, we successfully isolated a on one side. The formula for a can be given as:

∴ a=2s-b-c

5 0
4 years ago
How do u find perimeter. and i dont know how to determine the two expression
olga_2 [115]
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6 0
3 years ago
All the equations that graph with the same y-intercept
ivolga24 [154]

Answer:

all that got a "-8" part

Step-by-step explanation:

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the y-intercept is at x=0 and can easily be calculated by replacing x with said 0, only the term "-8" remains

6 0
3 years ago
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MArishka [77]

Answer:

0.4

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0.2 is too small,  and everything above 1.0 is too big, so by default, must be 0.4

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