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Misha Larkins [42]
2 years ago
12

Probability of a coin being flipped 3 times and each time landing on heads

Mathematics
1 answer:
madreJ [45]2 years ago
3 0

We have no way to calculate the probability of the coin being flipped three times.  It really depends on who, where, when, and why.

But if it IS flipped 3 times, and it's an honest coin, then . . .

-- the probability of heads on the first flip is 0.5

-- the probability of heads on the second flip is 0.5

-- the probabilty of heads on the third flip is 0.5

-- the probability of all three results is

(0.5) x (0.5) x (0.5) = <em>0.125</em>

That's <em>12.5% </em>.

(or one eighth)

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What fraction would represent the ratio of the cost
Stolb23 [73]
To write 3000 as a fraction you have to write 3000 as numerator and put 1 as the denominator. Now you multiply numerator and denominator by 10 as long as you get in numerator the whole number.
3000 = 3000/1 = 30000/10

And finally we have:
3000 as a fraction equals 30000/10
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Factor this expression
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6(3x−4y)

Step-by-step explanation:

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1 year ago
Solve 2x + 4 &gt; 16<br><br> A. x &gt; 10<br> B. x &lt; 6<br> C. x &lt; 10<br> D. x &gt; 6
Salsk061 [2.6K]

Hey there! :)

2x + 4 > 16

We're simply just trying to get x onto it's own side, so let's get rid of any numbers on the same side of it.

We can start out by subtracting both sides by 4.

2x + 4 - 4 > 16 - 4

Simplify.

2x > 12

Then, divide both sides by 2.

2x ÷ 2 > 12 ÷ 2

Simplify.

x > 6

Therefore, our answer is D. x > 6

~Hope I helped!~

6 0
3 years ago
An analyst at Umbrella Corporation studied the relationship between the sales (in millions of dollars) of a product (Y) and popu
Sunny_sXe [5.5K]

Answer:

OPTION A: The company can be 95% confident, based on the method used to calculate the interval, that the true increase in mean sales for each additional 1 million persons in the marketing district is between $453,000 and $1,060,000.

Step-by-step explanation:

Note that the slope here is the increase in sales (in millions of dollars) per every 1 million increase in population. Hence, as this is a confidence interval for the slope, then

OPTION A: The company can be 95% confident, based on the method used to calculate the interval, that the true increase in mean sales for each additional 1 million persons in the marketing district is between $453,000 and $1,060,000.

5 0
3 years ago
find the measure of the complementary angles that satisfy each case. the measure of the first angle is 30 greater than the measu
Inga [223]

Answer:

First angle: 60°

Second angle: 30°

Step-by-step explanation:

Let the two angles be signified by the variables x & y.

Let the first angle = x, and the second angle = y.

It is given that:

"The measure[ments] of the complementary angles...": x + y = 90°

"The measure of the first angle is 30 greater than the measure of the second angle": x = y + 30°

Use the system of equations. Plug in y + 30 for x in the first equation:

(y + 30) + y = 90

Combine like terms:

(y + y) + 30 = 90

2y + 30 = 90

Isolate the variable, y. Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS. First, subtract 30 from both sides of the equation:

2y + 30 (-30) = 90 (-30)

2y = 90 - 30

2y = 60

Next, divide 2 from both sides of the equation:

(2y)/2 = (60)/2

y = 60/2

y = 30°

Plug in 30 for y in one of the equations:

x = y + 30

x = (30) + 30

x = 60°

Your answers:

First angle: 60°

Second angle: 30°

6 0
3 years ago
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