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shtirl [24]
3 years ago
5

Please help.A teacher asked her pupils what their favourite school subject was.

Mathematics
1 answer:
julia-pushkina [17]3 years ago
3 0
Yes this is simple just what is the angle of the whole circle and just subtract from that number.
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The equation of the tangent to the curve x^2 = 4y at the point on the curve where x=-2 is?
aleksandrvk [35]
x^2 = 4y \Rightarrow y= \frac{x^2}{4}
\frac{dy}{dx} = \frac{2x}{4} =  \frac{x}{2}

(x = -2) \frac{dy}{dx} = \frac{x}{2} =  \frac{-2}{2} = -1
(x = -2) y= \frac{x^2}{4}= \frac{(-2)^2}{4}  = 1

y-y_1=m(x-x_1)
y-1 = -1(x--2)

y-1 = -1(x+2)
y-1 = -x-2
y=-x-1 = -(x+1)

7 0
3 years ago
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Which of the following can be used to find the sum of the interior angles for any regular polygon?
TiliK225 [7]
<span>Sum of Interior Angles = (Number of Sides -2) • 180 degrees
It seems C is the answer.


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8 0
3 years ago
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One week 72 people got a speeding ticket the next week only 36 people get a speeding ticket what is the percentage of change in
SVETLANKA909090 [29]

Answer:

The answer would be 50%

Step-by-step explanation:

You Would get this by dviding 36/72 which would give you .5 and then you convert that to a percentage

7 0
2 years ago
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In ∆ABC, point D is the centroid. If (AE) ̅=15, (BF) ̅=27, and (CD) ̅=8, find the following lengths
Anna71 [15]

Answer:

5,18,12 cms are the answer.

Step-by-step explanation:

Given is a triangle ABC.  Point D is the centroid.  

E,F and G are midpoints of CB, BA and AC respectively.

AE, BF and CG are medians of the triangle.

We know that centroid divides the median in the ratio 2:1

Using this we find that AD:DE = 2:1

Or AD+DE:DE = (2+1):1

AE:DE =3:1

15:DE = 3:1 . Hence DE =5 cm.

On the similar grounds we find that DF = 1/3 BF = 9

Hence BD = DF-BF = 27-9 =18 cm

and also

CG = 3/2 times CD = 12 cm.

7 0
2 years ago
Here's a question for the day, it's simple but it needs explaining.
GuDViN [60]
It is used to see if a graph represents a function because if there is 2 dots or intersecting lines within the other lines then it is not a function. if there is only one line or dot, then yes, it is a function. hope i explained it well.
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2 years ago
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