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3 years ago

10

In a probability experiment, Eric flipped a coin 33 times. The coin landed on heads 22 times. What is the ratio of heads to tail

s in this experiment

1 answer:

NeTakaya3 years ago

7 0

Answer:

22:11 which would simplify to 2:1

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Determine whether set of values represents an inverse variation. If yes, identify the constant of variation and write an inverse

Natasha_Volkova [10]

SOLUTION

If the table represents an inverse variation, it means that y is inversely proportional to x, written as

$\begin{gathered} y\propto\frac{1}{x} \\ \propto is\text{ a sign of proportionality } \end{gathered}$

Removing the proportionality sign and introducing a constant k, we have

$\begin{gathered} y=k\times\frac{1}{x} \\ y=\frac{k}{x} \end{gathered}$

In the first column, we have x = -4 and y = 3.5. Substituting these values for x and y, we have

$\begin{gathered} y=\frac{k}{x} \\ 3.5=\frac{k}{-4} \\ k=3.5\times-4 \\ k=-14 \end{gathered}$

So, if it's an inverse variation, the relationship would be

$y=\frac{-14}{x}$

In the second column, x = -2 and y = 7.

Now lets substitute the value of x for -2. If we get y to be 7, then the relationship is an inverse variation

We have

$\begin{gathered} y=\frac{-14}{x} \\ y=\frac{-14}{-2} \\ y=7 \end{gathered}$

Since we got y = 7, the relationship is therefore an inverse variation.

The constant k = -14

The equation for the inverse variation is

$y=\frac{-14}{x}$

3 0

1 year ago

Lynn gave her nail technician a $5.10 tip. The tip was 15% of the cost of the manicure. Write an

satela [25.4K]

Answer:

Step-by-step explanation:

b x .15 = 5.10

b=5.10/.15

b=34

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2 years ago

A satilitle makes 4 revolutions in one day. How many revolutions would it make in 6 1/2 days

Oksana_A [137]

26 Revolutions in 6 1/2 days.

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3 years ago

lys-0071 [83]

The answer is the height of 17 and base is 12 of this helps mark as brainliest

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3 years ago

Which of the following are the zeros of the function y= 3(x-a)(x+b) in terms of a and b?

frosja888 [35]

The correct answer is option 2.

3 = 0

x - a = 0

x = a

x + b = 0

x = -b

We do not multiply any of these values by 3 because in a way, 3 is acting as another "zero" of the equation. Though, as shown above, it does not equal 0, it still does not apply to any of the other equations solved above.

Hope this helps!! :)

7 0

3 years ago