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vredina [299]
3 years ago
11

What ratio represents the probability of drawing a red card from a standard deck of 52 cards

Mathematics
1 answer:
marishachu [46]3 years ago
4 0
Half of the cards are red and half of them are black
so the answer is 1/2

or you can say that 26 are red and 26 are black
26/52 = 1/2
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Help please!
Anna71 [15]

Answer:

y= -4x^2 + 15x - 14

Step-by-step explanation:

A parabola is always in the form y = ax^2 + bx + c.

Substitute each point to produce different equations:

-14 = 0a + 0b + c = c

so c = -14

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so a + b = 11

0 = a2^2 + b2 + c = 4a + 2b -14 = 0

so 4a + 2b = 14

if we double a + b = 11 we get 2a + 2b = 22

Subtract this from 4a + 2b = 14 and we get 2a = -8 so a= -4 and b = 11 - a = 15

We don't need to use the (3,5) points as we have all the information we need.

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