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3 years ago

A coin is flipped eight times where each flip comes up either heads or tails. how many possible outcomes

1 answer:

7 0

I think its option A as u cant answer the other 2, we don't know the chances of getting heads or tails we can only see how many of which we can get in total which is 2 as we can only get an outcome of heads or tails

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Find the difference between8/15 and 2/3 Show all calculations in your final answer.

kherson [118]

Answer:

$\frac{8}{15}-\left(\frac{-2}{3}\right)=\frac{6}{5}$

Step-by-step explanation:

Let the value of a number 'a' be = 8/15

Let the value of a number 'b' be = 2/3

The difference between the two numbers can be calculated by subtracting the numbers

$a-b=\frac{8}{15}-\left(\frac{-2}{3}\right)$

$\mathrm{Remove\:parentheses}:\quad \left(a\right)=a$

$=\frac{8}{15}-\frac{-2}{3}$

$\mathrm{Apply\:the\:fraction\:rule}:\quad \frac{-a}{b}=-\frac{a}{b}$

$=\frac{8}{15}-\left(-\frac{2}{3}\right)$

$\mathrm{Apply\:rule}\:-\left(-a\right)=a$

$=\frac{8}{15}+\frac{2}{3}$

$\mathrm{Since\:the\:denominators\:are\:equal,\:combine\:the\:fractions}:\quad \frac{a}{c}\pm \frac{b}{c}=\frac{a\pm \:b}{c}$

$=\frac{8+10}{15}$

$=\frac{18}{15}$

$\mathrm{Cancel\:the\:common\:factor:}\:3$

$=\frac{6}{5}$

Thus,

$\frac{8}{15}-\left(\frac{-2}{3}\right)=\frac{6}{5}$

3 0

3 years ago

What is 37.5% of a fraction

Salsk061 [2.6K]

3/8 hope this helped

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3 years ago

Here is a scale drawing of a swimming pool where 1 cm represents 1 m. The dimensions of the drawing are 6.5 cm by 13 cm.

DochEvi [55]

Answer:

1cm

Step-by-step explanation:

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3 years ago

480/____=80<br> what does ____=???

Talja [164]

The answer is 6. 480 divided by 80 gives you the answer 6.

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3 years ago

Subtract -7x^2+4x+2 from x^2-3x

Nutka1998 [239]

Answer:

-8x^2+x+2

Step-by-step explanation:

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3 years ago