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Juliette [100K]
3 years ago
8

Of 70 tosses of a dime, 55 results are heads. Find the empirical probability of tossing heads with this coin. ______ Is this a f

air coin, in your opinion? Why or why not?
Mathematics
1 answer:
Aleksandr-060686 [28]3 years ago
8 0
The empirical, or experimental, probability of an event is the number of times the event occurred over the number of times the experiment was conducted.  In this case it would be 55/70 = 11/14, as there were 55 heads flipped out of a total of 70 coin flips.
Mathematically speaking, no, this is not a fair coin.  To be fair, both events would have to have the same chance of happening.  Since the probability of heads was 55/70, that leaves 15/70 for tails.  The chances are not equal, so not fair.
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110 is 45% of what number
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Answer:49.5

Step-by-step explanation:

To find the 45% of 110

45/100×110

=49.5

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Find the 61st term of -12, -28, -44,
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Answer:

a_{61}=-972

Step-by-step explanation:

<u>Arithmetic Sequences</u>

The arithmetic sequences are identified because any term n is obtained by adding or subtracting a fixed number to the previous term. That number is called the common difference.

The equation to calculate the nth term of an arithmetic sequence is:

a_n=a_1+(n-1)r

Where

an = nth term

a1 = first term

r   = common difference

n  = number of the term

We are given the first terms of a sequence:

-12, -28, -44,...

Find the common difference by subtracting consecutive terms:

r = -28 - (-12) = -16

r = -44 - (-28) = -16

The first term is a1 = -12. Now we calculate the term n=61:

a_{61}=-12+(61-1)(-16)

a_{61}=-12-60*16=-12-960

\mathbf{a_{61}=-972}

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3 years ago
Name the three-dimensional figure that is formed by folding the net.
Ivanshal [37]
A triangular Prism I would say but it does have rectangles
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An employee earns $200 for 14 hours work. Assuming he is paid by the hour, how much will this employee earn in 35 hours?
bezimeni [28]
If an employee earns 200 dollars for 14 hours work, that means this person gets approximately 14 dollars and 29 cents per every hour.

Thus, in 35 hours, you can multiply 14.29 by 35 to get about 500 dollars.

In 35 hours, the employee will earn 500 dollars.
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Gina wilson unit 6 homework 4 <br> help with 6,8,and9
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Answer:

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Step-by-step explanation:

Q6. Solve for x

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  • 28/54 = (2x + 8)/(5x - 4)
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  • 14(5x - 4) = 27(2x + 8)
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  • 70x - 54x = 56 + 216
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  • x = 272/16
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Q8

If ratios are same, the lines are parallel

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Yes, lines are parallel

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