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jek_recluse [69]

2 years ago

12

Help me to solve this question

1 answer:

Anastasy [175]2 years ago

4 0

Answer:

$\frac{6}{25}$

Step-by-step explanation:

$P(A) = \frac{number \: of \: times \: A \: occurs}{total \: number \: of \: spins}$

$P(A) = \frac{12}{12 + 16 + 13 + 9} = \frac{12}{50} = \frac{6}{25}$

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What is the simplified form of the expression -2(-5x - 8)?

Deffense [45]

Answer: 10x+16

Step-by-step explanation:

Use the distributive property a(b+c)= ab+ac

so

-2(-5x-8) = (-2 * -5x) - (-2* -8)

=

10x-(-16)

=10x+16

Hope this helped!

3 0

3 years ago

Suppose that the value of a stock varies each day from $13 to $24 with a uniform distribution. (a) Find the probability that the

bogdanovich [222]

Answer:

a. P= 0.6364

b. P = 0.3636

c. Q = $21.25

d. P = 0.5

Step-by-step explanation:

given data

value of a stock varies = $13 to $24

solution

P (stock value is more than $17)

P = $\frac{(24-17)}{(24-13)}$

P = $\frac{7}{11}$

P = 0.6364

and

P (value of the stock is between $17 and $21)

P = $\frac{(21-17)}{(24-13)}$

P = $\frac{4}{11}$

P = 0.3636

and

Let the upper quartile be Q

$\frac{(24 - Q)}{(24 - 13)} = 0.25$

$\frac{(24 - Q)}{11} = 0.25$

(24 - Q) = 2.75

so

Q = $21.25

and

P(X > 20 | X > 16)

P = $\frac{(24-20)}{(24-16)}$

P = $\frac{4}{8}$

P = 0.5

3 0

3 years ago

Find the solution to the system of equations below (you can do this by substitution or elimination).

rewona [7]

Step-by-step explanation:

y=6+4x, as equation (iii)

=> -5x-(6+4x)=21

=> -5x-6-4x=21

=> -5x-4x-6=21

=> -9x-6=21

=> -9x=21+6

=> -9x=27

x= -3, by dividing both sides by -9

So, by inserting x in the first equation,

=> -4(-3)+y=6

=> 12+y=6

=> y=6-12

=> y= -6.

Therefore, x= -3 and y= -6

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expeople1 [14]

Answer: 17 miles

.5hr x 10Mph + .5 x 24mph = 17 miles

Step-by-step explanation:

4 0

3 years ago

I have four times as much money as my brother has. Our total is $55. How much does each of us have?

padilas [110]

Answer:

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Step-by-step explanation:

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