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DaniilM [7]
3 years ago
6

What is the image of the point (4, -8) after a rotation of 270° counterclockwise

Mathematics
1 answer:
iVinArrow [24]3 years ago
7 0

Answer:

point (-8,-4)

Step-by-step explanation:

You can plot that coordinate and rotate the graph to figure out this point.

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One day in the playground,the ratio of the number of boy to the number of girl is 3:5 later 6girls come, 9boy leave, the ratio o
choli [55]

Answer:

The number of boys are 18 and the number of girls are 30.

Step-by-step explanation:

The ratio of number of girls to the boys = 3 : 5

Let the number of girls is g and boys is b initially.

b : g = 3 : 5

5 b = 3 g ..... (1)

Now, girls are 6 + g and boys are b - 9

So, the ratio is

(b - 9) : (6 + g) = 1 : 4

4 b - 36 = 6 + g

4 b - g = 42 .... (2)

From ( 1 ) and ( 2 )

4 b - \frac {5 b}{3}= 42\\\\\frac{7 b }{3} = 42\\\\b = 18

And , g = 5 x 18/3 = 30

So, the number of boys are 18 and the number of girls are 30.  

7 0
3 years ago
Please help me thank you
fgiga [73]
I hated probability in middle school. I'm not 100% sure but I would go with the 3rd answer choice, 3/100.
3 0
3 years ago
Which is an equation for the circle with a center at (-2, 3) and a radius of 3?
kkurt [141]

Answer:

(x+2)^2 +(y-3)^2 = 9

Step-by-step explanation:

(x-h)^2 +(y-k)^2 = r^2

Where (h, k) is the center of the circle

And r is the radius of the circle.

Hope this helps.

6 0
3 years ago
Determine the period.
soldier1979 [14.2K]

Answer:

Step-by-step explanation:

we are being told that each square is one unit.  so,  look at peak to peak and count the units.  

1,2,3,4,5,6,7

From peak to peak is 7 units, so the period is 7

8 0
2 years ago
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