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Agata [3.3K]
3 years ago
9

A spinner is divided into four equal sections labeled 1, 2, 3, and 4. Another spinner is divided into three equal sections label

ed A, B, and C. Simon will spin each spinner one time.
How many of the possible outcomes have an even number or a B?
Mathematics
2 answers:
yarga [219]3 years ago
8 0

Answer:

The possible outcome could be 4 or 3

Step-by-step explanation:


KonstantinChe [14]3 years ago
7 0

Answer:

2/3

Step-by-step explanation:

There are 12 possible outcomes. Of the 12, 6 are even and 4 have B's. That would give up 10/12. But then you would subtract the possible outcomes that are BOTH even AND have a B. Only 2 possible outcomes have an even number and the letter B. So 10 minus 2 is 8. That would give you 8/12. Simplify and you will get your answer of 2/3!

Just took the test, so trust me on this fellow K12ers!

You might be interested in
Consider a sample with data values of 10, 20, 12, 17, and 16. Compute the z-score for each of the five observations. If required
Mila [183]

Answer:

\begin{tabular}{c|ccccc}{$x$&10&12&16&17&20&z&-1.397&-0.839&0.2795&0.559&1.397&\end{tabular}

Step-by-step explanation:

z-score is denoted by:

z=\dfrac{x-\mu}{\sigma}

here,

\mu: mean

\sigma: standard deviation (or the square root of the variance)

so first we need to find the means of our sample:

\mu=\dfrac{10+20+12+17+16}{5}\\\mu = 15\\

Now to find the standard deviation we first need to find the variance of the sample. The variance is the sum of the squares of the differences of each value from the mean.

\sigma^2 = \dfrac{(10-15)^2+(20-15)^2+(12-15)^2+(17-15)^2+(16-15)^2}{5}\\\sigma^2 = 12.8

the standard derviation is simply the square root of the variance!

\sigma = \sqrt{\sigma^2} \\\sigma = \sqrt{12.8} \\\sigma = 3.5778

Now that we all the values for our z-score formula. we can plug it in!

z=\dfrac{x-\mu}{\sigma}

z=\dfrac{x-15}{3.5778}

Finally we'll use each value in place of x from our sample into the formula to find the z-score of each value.

z=\dfrac{10-15}{3.5778} = -1.397

z=\dfrac{20-15}{3.5778} = 1.397

z=\dfrac{12-15}{3.5778} = -0.839

z=\dfrac{17-15}{3.5778} = 0.559

z=\dfrac{16-15}{3.5778} = 0.2795

We can even display the z-scores in a table: (the x-values are in ascending order)

\begin{tabular}{c|ccccc}{$x$&10&12&16&17&20&z&-1.397&-0.839&0.2795&0.559&1.397&\end{tabular}

5 0
3 years ago
Mrs. Potter divides the Grade 8 class of 21 students into few equal groups. The number of
Yuri [45]

Answer:

Step-by-step explanation:

list of prime numbers from 1-21

2,3,5,7,11,13,17,19

he has 21 students

the only numbers he can divide by is 3 and 7

21/3=7

21/7=3

7 0
2 years ago
what is the probability of drawing 1 red marble and 3 blue marbles when given 10 red marbles and 7 blue marbles?
nirvana33 [79]
The probability is 3/70
6 0
3 years ago
A dolphin is swimming to the surface of the ocean while at the same time a bird is flying towards the surface of the ocean. The
maksim [4K]

They are at the same position at 0.5 seconds because with respect to the ocean's surface, they are both 9 feet away.

Hope this helps!!

5 0
3 years ago
Read 2 more answers
Please help, I dont know the answer, can someone tell me the answer please and explain it?
sergiy2304 [10]

Answer:

Kristen is correct.

2^3 is the same thing as 2 times 2, times 2. 2 cubed = 8.

5 0
3 years ago
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