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3 years ago

You flip three coins. what isthe probability that you get at least two heads, given that you get at least one head?

1 answer:

8 0

1/2
If there is one head and one tail for each coin the probability would be 1/2. There are two terms with only one answer 1/2.

OR

If you are asking for the end result of heads and the coins you would get 2/3. There are three terms with only one answer. 2/3.

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Which of the following is the sample space for the numbers on a phone?

emmainna [20.7K]

Answer: b) {0, 1, 2, 3, 4, 5, 6, 7, 8, 9}

Explanation: We simply list all the numeric single digits from 0 to 9. We'll leave out the asterisk and pound sign as they aren't numeric digits.

5 0

2 years ago

Donald's Earnings, x (dollars) Fallons Earnings, y 38 45 43 50 48 55 53 60 58 65 Which equation best represents Fallon's earning

kherson [118]

Given:

The table of values for Fallon's earnings in terms of Donald's earnings.

To find:

The equation that best represents Fallon's earnings in terms of Donald's earnings.

Solution:

In the given table the x-values are increasing by 5 units and y values increasing by 5 units. It means the rate of change of y with respect to x is constant and the table represents a linear function.

If the graph of a linear function passes through two points, then the equation of linear function is

$y-y_1=\dfrac{y_2-y_1}{x_2-x_1}(x-x_1)$

Consider any two points from the table. Let the two points are (38,45) and (43, 50). Then, the equation is

$y-45=\dfrac{50-45}{43-38}(x-38)$

$y-45=\dfrac{5}{5}(x-38)$

$y-45=1(x-38)$

$y-45=x-38$

Adding 45 on both sides, we get

$y=x-38+45$

$y=x+7$

Therefore, the correct option is A.

8 0

2 years ago

The ages of the employees at Solar Systems, Inc. is normally distributed with a mean of 32.7 years and a standard deviation of 1

svetoff [14.1K]

Answer:

6.7% of employees at Solar Systems, Inc. are younger than 30 years old

Step-by-step explanation:

The mean of ages of the employees at Solar Systems is 32.7 years

Mean = $\mu = 32.7$

Standard deviation = $\sigma = 1.8 years$

We are supposed to find What percentage of employees at Solar Systems, Inc. are younger than 30 years old i.e.P(x<30)

So, $Z=\frac{x-\mu}{\sigma}$

$Z=\frac{30-32.7}{1.8}$

Z=-1.5

Refer the z table for p value

So,p value = 0.0668

So P(x<30)=0.0668= 6.68% = 6.7%

So, 6.7% of employees at Solar Systems, Inc. are younger than 30 years old

7 0

3 years ago

Bella's Pizza Shop charges $4.50 for a small pizza, $7 for a medium pizza, and $9 for a large pizza. Toppings cost extra dependi

rusak2 [61]

The unit price of each topping is $1.40. Divide $12.60 by the 3 toppings. That will give you the price of all 3 toppings together which is $4.20. Divide $4.20 by 3 and that will give you the unit price of each individual topping which is $1.40. To check your answer, multiply $1.40 by 3 which is $4.20. Then, multiply $4.20 by 3 which gives you the whole price which is $12.60

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3 years ago

How do I find the number of solutions for this equation? 6y = 12x + 36

Soloha48 [4]

Answer:

6y = 12x + 36 is x= 1 /2 y−3

15y = 45x + 60 is x= 1 /3 y+ −4 /3

Step-by-step explanation:

4 0

3 years ago