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Elena-2011 [213]
2 years ago
9

id="TexFormula1" title="\large{ \boxed{ \bold{ \pmb{Nonsense = Reported!!}}}}" alt="\large{ \boxed{ \bold{ \pmb{Nonsense = Reported!!}}}}" align="absmiddle" class="latex-formula">
​

Mathematics
1 answer:
GarryVolchara [31]2 years ago
5 0
  • y=-9x-11

Compare to y=mx+b

  • m=-9=slope

Parallel lines have equal slopes

Now

equation in point slope form

  • y-6=-9(x+4)
  • y-6=-9x-36
  • y=-9x-30
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Find the area of a circle with a circumference of 31.5 units
Westkost [7]

Answer:

79 units²

Step-by-step explanation:

The area of a circle is found by using the formula A = π x r². Since we are not given the radius we can use the formula r = C / (2π). Substituting in the given values, we get r = 31.5/(2π). 2 times pi is 6.283185307. 31.5 divided by this will get you 5.013380707. Now, put that value in for r in the area equation. A = π x 5.013380707². Pi times 5.013380707² equals 78.96074613. This can be rounded to 79. (Or 80 if you need to the nearest whole number.)

6 0
3 years ago
Find the area of an equilateral triangle with side 8
Nikitich [7]
Hello! I believe the answer is 27.71.


I hope this helps!
6 0
3 years ago
Read 2 more answers
.<br><img src="https://tex.z-dn.net/?f=%20-%208%20-%201%20%2B%204.2" id="TexFormula1" title=" - 8 - 1 + 4.2" alt=" - 8 - 1 + 4.2
Trava [24]
The answer is going to be 5.2
7 0
3 years ago
The equation of line a is y=−14x+3. If line b runs perpendicular to line a and passes through (2, 6), what would be the equation
AysviL [449]

Hint : The product of the slopes of two lines perpendicular to each other is - 1 .

______________________________

In slope-intercept ( y = ax + b ) from of the linear equations the coefficient of x is the slope of the line.

Thus :

Slope of line a = - 14

______________________________

Suppose that the slope of line b is x according to the Hint we have :

- 14 × x = - 1

negatives simplify

14x = 1

Divide both side by 14

14x ÷ 14 = 1 ÷ 14

x = 1/14

So the slope of line b is 1/14

_____________________________

Now let's find the equation of line b by point-slope formula using the point question have us ( 2 , 6 ) :

y - y( given point ) = Slope × ( x - x ( g p ) )

y - 6 = 1/14 × ( x - 2 )

y - 6 = 1/14 x - 2/14

y - 6 = 1/14 x - 1/7

Add both sides 6

y - 6 + 6 = 1/14 x - 1/7 + 6

y = 1/14 x - 1/7 + 42/7

y = 1/14 x + 41/7

And we're done ...

6 0
2 years ago
In the equation 0.5x-8=1.5 the decimal coefficient is
Anastasy [175]

Answer:-9.5

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
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