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3 years ago

Help me plz! Help me plz!

Mathematics

1 answer:

erik [133]3 years ago

6 0

After converting to common denominator:

8/18, 7/18, 6/18, 5/18

so the next fraction is 4/18, but if you have to simplify it’s 2/9

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I need help with this problem!!

pychu [463]

C because it has the x variables in the numerator. This is wrong because the x axis represents horizontal movement and slope is rise over run, not run over rise

5 0

3 years ago

In a game of rolling a die. If the number showing is even, you win $3, if the number showing is 1 you win $3 and if the number s

IceJOKER [234]

Answer:

(a)

$\left|\begin{array}{c|c|c}---&---&---\\x&\$0&\$3\\---&---&---\\P(x)&\dfrac13&\dfrac23\\---&---&---\\\end{array}\right|$

(b)$2

Step-by-step explanation:

In the given game of rolling a die. these are the possible winnings.

If the number showing is even(2, 4, or 6) or 1, you win $3.
If the number showing is either 3 or 5 you win $0.

There are 6 sides in the die.

$P($obtaining a 1,2,4 or 6)=\dfrac46=\dfrac23\\P($obtaining a 3 or 5)=\dfrac26=\dfrac13$

(i)The probability distribution of x.

Let x be the amount won

Therefore:

Probability distribution of x.

$\left|\begin{array}{c|c|c}---&---&---\\x&\$0&\$3\\---&---&---\\P(x)&\dfrac13&\dfrac23\\---&---&---\\\end{array}\right|$

(ii) Expected amount of dollar won

Expected Amount

$=\sum x_iP(x_i)\\=(0*\dfrac13)+(3*\dfrac23)\\=\$2\\$

You would expect to win $2.

7 0

3 years ago

Use completing the square to solve for x in the equation (x-12)(x+4)=9

andreyandreev [35.5K]

Answer:

Step-by-step explanation:

lets foil it and complete the square

x^2+4x-12x-48=9

x^2-8x=57

(-8/.5)^2=16

(x-4)^2-73

4 0

3 years ago

Read 2 more answers

Please help me !!!

Dafna1 [17]

I hope this helps you

3 0

3 years ago

Read 2 more answers

Ryan runs 8 miles in 74 minutes. How many minutes does he run per mile?

vlabodo [156]

74 ÷ 8 = 9.25 minutes

3 0

3 years ago