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2 years ago

10

there are 5 green marbles, 4 red marbles, and 3 yellow marbles in a bag. John selects a marble at random, keeps it, and then sel

ects another marble at random. determine the possibility that two green marbles are chosen.

1 answer:

Daniel [21]2 years ago

3 0

Answer:

1/22

Step-by-step explanation:

12 total marbles
5/12 - 1/1 = 4/11
4/11 - 1/1 = 3/10
5/12 × 4/11 × 3/10 = 1/22

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Sixty percent of the customers who go to Sears Auto Center for tires buy four tires and 22% buy two tires. Moreover, 12% buy few

kozerog [31]

Answer:

A Cumulative probability distribution for the number of tires bought is prepared below.

Step-by-step explanation:

We are given that Sixty percent of the customers who go to Sears Auto Center for tires buy four tires and 22% buy two tires. Moreover, 12% buy fewer than two tires, with 6% buying none.

The cumulative probability distribution for the number of tires bought is given by;

<u>No. of tires</u> <u>Probability Distribution</u> <u>Cumulative Probability</u>

<u>Distribution</u>

0 6% 6%

1 6% 12%

2 22% 34%

3 6% 40%

4 60% 100%

Now, here we are given within the question about:

P(0 tires) = 6%

P(2 tires) = 22%

P(4 tires) = 60%

Also, P(Fewer than 2 tires) = 12% which means P(0 tires) + P(1 tire) must be equal to 12%. So, P(1 tire) = 12% - 6% = 6%.

And, in the end P(3 tires) = 100% - 6% - 6% - 22% - 60% = 6%.

3 0

3 years ago

Find the discriminant for each quadratic function below. Then list the number of zeros/solutions for each quadratic function.

Hunter-Best [27]

Answer:

Step-by-step explanation:

The discriminant is found in

$b^2-4ac$ which is part of the quadratic formula. In

$4x^2+10x-16=0$ , a = 4, b = 10, c = -16. Filling in for the discriminant:

$10^2-4(4)(-16)=100+256=356$

It's positive so we know we have real roots; it's not a perfect square, so our solutions are 2 complex rational.

In $-16x^2-7x+3=0$ , a = -16, b = -7, c = 3. Filling in for the discriminant:

$(-7)^2-4(-16)(3)=49+192=241$

It's positive and not a perfect square so the 2 solutions are complex rational

5 0

2 years ago

I am stuck please help!

olga2289 [7]

Answer:

5x - 63 = 6

Step-by-step explanation:

Okay, first step, let's get all fractions having a common denominator, to do this, multiply 2/3 by 3 to get 6/9. Now, we have 5/9x-7=6/9. To make these into whole numbers, we can multiply the whole equation by the denominator (9). 5/9x multiplied by 9 is 5. 7 multiplied by 9 is 63. 6/9 multiplied by 9 is 6. Now we have 5x-63=6. If I were to simplify the equation, it would require decimals, so I'll leave it at this, but the equation simplified is x=13.8.

7 0

2 years ago

Please help me with this

lakkis [162]

So since 2/5 of the washing machines have been sold that means 3/5 remain in the store

first find the number of washing machines that were in the store before any were sold

X is the number of washing machines in the store before selling

18=(3/5)X

18/(3/5)=X
X=18*(5/3)
X=30

so at the beginning there were 30 machines

then multiply the percent sold (2/5) by the number at beginning to find the number sold

(2/5)*30=12

so 12 machines were sold

to find the cost per machine divide the total price by number of machines sold so

$3840/12= $320

so the answer is $320 per machine

5 0

2 years ago

Can you convert each standard-form equation to slope-intercept form and type the correct code? Please remember to type in ALL CA

Goshia [24]

Answer: Don't know sorry

Step-by-step explanation:

4 0

2 years ago