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Reika [66]
3 years ago
10

PLEASE SMART PEOPLE OUT THERE HELP

Mathematics
1 answer:
RSB [31]3 years ago
3 0

Answer:

1 / 8

Step-by-step explanation:

So there are 8 marbles in all.

The probability of getting a purple is 1 / 2

The probability of getting a green is 1 / 4

1 / 2 * 1 / 4 = 1 / 8

There is a 1 / 8 chance.

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Is 1.572735 rational?
Gekata [30.6K]

Answer:

yes

Step-by-step explanation:

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6 0
3 years ago
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Can someone please help me with this, im doing a test and im stuck on this question.
Mashutka [201]

Answer:

20

Step-by-step explanation:

first do 75/50 = 1.5

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13 landed on red so

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6 0
3 years ago
Find an equation for the line tangent to the circle x^2 +y^2=25 at the point (3, -4)
Lostsunrise [7]
Hello : 
the center of this cercle is : O( 0, 0)
calculate the slope  m of the line : OA    .. A (3,-4)
m= (yA - yO) / (xA- xO) 
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m= -4/3
if : k the slope of the tangent : k×m = -1   (the tangent perpendiclar of : OA)
k× (-4/3) = -1
k = 3/4
an equation of this tangent is : y - (-4) = (3/4)(x-3)

7 0
3 years ago
GEOMETRY. 20 POINTS. PLEASE DO NOT GIVE STUPID ANSWERS.
sp2606 [1]
Hey there!

A quadrilateral has 360 degrees. So add all the degrees together to 360. 9x+1+5x-12+8x+61+90=360. 90 degrees is in the bottom left corner. Combine like terms. 22x+140=360. Subtract 140 from each side. 22x=220. Divide 22 on each side to get x=10. Plug in 10 for x in angle D. 5(10)-12=38. The measure of angle D is 38 degrees.

I hope this helps!
3 0
3 years ago
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nika2105 [10]
The equation x = 180 - (31 + 40) can be used. Because the angles are in a straight line ad straight line equals 180 degrees
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