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3 years ago

Georgia knows that in the relationship between two

Mathematics

1 answer:

marysya [2.9K]3 years ago

5 0

Answer:

Maybe try doing it earlier, don’t try doing things last minute it will put too much stress. Thank you :)

Step-by-step explanation:

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Six sophomores and 14 freshmen are competing for two alternate positions on the debate team. Which expression represents the pro

Elanso [62]

Answer:

<em>Choose the first alternative</em>

$\displaystyle P=\frac{_{1}^{6}\textrm{C}\ _{1}^{5}\textrm{C}}{_{2}^{20}\textrm{C}}$

Step-by-step explanation:

<u>Probabilities</u>

The requested probability can be computed as the ratio between the number of ways to choose two sophomores in alternate positions $(N_s)$ and the total number of possible choices $(N_t)$ , i.e.

$\displaystyle P=\frac{N_s}{N_t}$

There are 6 sophomores and 14 freshmen to choose from each separate set. There are 20 students in total

We'll assume the positions of the selections are NOT significative, i.e. student A/student B is the same as student B/student A.

To choose 2 sophomores out of the 6 available, the first position has 6 elements to choose from, the second has now only 5

$_{1}^{6}\textrm{C}\ _{1}^{5}\textrm{C} \text{ ways to do it}$

The total number of possible choices is

$_{2}^{20}\textrm{C} \text{ ways to do it}$

The probability is then

$\boxed{\displaystyle P=\frac{_{1}^{6}\textrm{C}\ _{1}^{5}\textrm{C}}{_{2}^{20}\textrm{C}}}$

Choose the first alternative

7 0

3 years ago

Read 2 more answers

Which prism has a greater surface area? 2 prisms. A rectangular prism has a length of 12 inches, height of 8 inches, and width o

baherus [9]

Answer:

Step-by-step explanation:

ANSWER IS The rectangular prism has a greater surface area by 72 square inches. Sorry if it is wrong my kid was bothering me.

3 0

3 years ago

Read 2 more answers

If you have 13$ and each apple costs 30$, how much more money do i need to get 2 apples

Aleks04 [339]

You will need 47$
(30-13) + 30 =47

7 0

3 years ago

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What is the rate unit of running 4 miles in one hour?

stepan [7]

Answer:

Step-by-step explanation:

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3 years ago

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These two matrices are unable to be added due to dimensional mismatch? True, false, both, unable to answer with the info given

Hoochie [10]

Answer:

false

Step-by-step explanation:

$\left[\begin{array}{c}-4\end{array}\right] +\left[\begin{array}{c}7\end{array}\right] =\left[\begin{array}{c}3\end{array}\right]$

Both of the matrices are 1 x 1 ("one by one"), so they can be added to produce a 1 x 1 matrix.

To add (or subtract) two matrices, they must be the same size.

(m x n) + (m x n) = (m x n)

m x n means a matrix has m rows and n columns. Dimensions are always named in that order: rows, then columns.

6 0

3 years ago