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3 years ago

(Click the Picture for my question) and thank you!

Mathematics

2 answers:

Sunny_sXe [5.5K]3 years ago

8 0

Answer:

Step-by-step explanation:

By definition, π is defined to be the ratio of a circle's circumference to its diameter. In other words:

$\displaystyle \pi=\frac{C}{d}$

In fact, if you multiply both sides by the diameter d, you can see that:

$C=\pi d$

Which is the formula for circumference you've been commonly taught.

ELEN [110]3 years ago

7 0

The answer should be C

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Passing through (2, - 2) and perpendicular to the line whose equation is y= 5x+2

jonny [76]

Step-by-step explanation:

Hey there!!!

Here,

Given, A line passes through point (2,-2) and is perpendicular to the y= 5x+2.

The equation of a straight line passing through point is,

$(y - y1) = m1(x - x1)$

Now, put all values.

$(y + 2) = m1(x - 2)$

It is the 1st equation.

Another equation is;

y = 5x +2........(2nd equation).

Now, Comparing it with y = mx + c, we get;

m2=5

As per the condition of perpendicular lines,

m1×m2= -1

m1 × 5 = -1

Therefore, m2= -1/5.

Keeping the value of m1 in 1st equation.

$(y + 2) = \frac{ - 1}{5} (x - 2)$

Simplify them.

$5(y + 2) = - x + 2$

$5y + 10 = - x + 2$

$x + 5y + 8 = 0$

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Hope it helps...

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almond37 [142]

Answer:

y = -7x +8

Step-by-step explanation:

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