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Ganezh [65]
3 years ago
12

Mrs William has a prized box with different colored tickets. Each ticket results in different type of prize.

Mathematics
1 answer:
Lera25 [3.4K]3 years ago
6 0

\text{ Answer:} \text{ Probability that he chooses a yellow ticket and then a purple ticket }= \frac{3}{25}

Step-by-step explanation:

Since we have given that

Number of green tickets =3

Number of yellow tickets = 4

Number of purple tickets = 3

Total number of tickets = 3+4+3=10

Now,

As we know that Pedro select a ticket and replace it and then select another ticket , total number of outcomes will never change it will be 10 only for each case.

Probability that he chooses a yellow ticket and then a purple ticket is given by

\frac{4}{10}\times \frac{3}{10}\\\\=\frac{12}{100}\\\\=\frac{3}{25}

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Jerald jumped from a bungee tower. If the equation that models his height, in feet, is h = –16t2 + 729, where t is the time in s
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Answer. First option: t > 6.25


Solution:

Height (in feet): h=-16t^2+729

For which interval of time is h less than 104 feet above the ground?

h < 104

Replacing h for -16t^2+729

-16t^2+729 < 104

Solving for h: Subtracting 729 both sides of the inequality:

-16t^2+729-729 < 104-729

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Multiplying the inequality by -1:

(-1)(-16t^2 < -625)

16t^2 > 625

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16t^2/16 > 625/16

t^2 > 39.0625

Replacing t^2 by [ Absolute value (t) ]^2:

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Square root both sides of the inequality:

sqrt { [ Absolute value (t) ]^2 } > sqrt (39.0625)

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5 0
3 years ago
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Number 8 and 9 pls, if u answer u get brainlist rank!
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Answer:

8.

Denote the equation : y = ax + b

Use the first 2 values of x and y in table:

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Subtract the 2 equations:

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Denote the equation : y = ax + b

Use the first 2 values of x and y in table:

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Subtract the 2 equations:

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3 years ago
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AURORKA [14]

Answer:

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