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EleoNora [17]
3 years ago
9

A spinner has three sections. The table shows the results of spinning the arrow on the spinner 80 times.

Mathematics
2 answers:
Mkey [24]3 years ago
4 0

Answer: \frac{7}{20}

Step-by-step explanation:

From the given table, The number of times arrow comes results in section 1= 28

The total number of times spinner spins =80

Now, the experimental probability of the arrow stopping over Section 1 is given by:-

\text{P(Section 1)}=\frac{28}{80}=\frac{7}{20}

Hence, the  experimental probability of the arrow stopping over Section 1 is \frac{7}{20}

stira [4]3 years ago
3 0
45%

Hope this helped!
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Sam raked 3 bags of leaves in 16 minutes. If he continues at the same rate, how many minutes will it take him to rake 9 bags?
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Answer:

48 minutes.

Step-by-step explanation:

9 divided by 3 equals 3, 16 multiplied by 3 equals 48.

8 0
3 years ago
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miss Akunina [59]

Answer:

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Step-by-step explanation:

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Which polynomial function has a leading coefficient of 1 and roots 21 and 31 with multiplicity 1?
schepotkina [342]

Answer:

Which i think is the first one, there may just be a typing error.

Step-by-step explanation:

A polynomial of order n has the following format:

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In which a is the leading coefficient, x_{0}, x_{1},..., x_{n-1} are the roots.

If a root appears m times, they are said to have multiplicity m.

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f(x) = 1(x - 21)(x - 31)

So the correct answer is:

f(x) = 1(x - 21)(x - 31)

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8 0
3 years ago
Solve the equation 13-2x=-7
patriot [66]
Subtract 13 from both sides.

-13
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-2x = -20

Divide by 2 on both sides.
Remember: Negative divided by a negative makes a positive.

-2/-2 = 1
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Your answer:
x = 10

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