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3 years ago

Your sock drawer in all mixed up! You

Mathematics

1 answer:

Makovka662 [10]3 years ago

7 0

Step-by-step explanation:

There are 21 socks in total. Only 7 of them are white.

When you pick your 1st sock, you have a 7/21 chance to get white.

When you pick your 2nd sock, you have a 6/21 chance to get another white, since you already picked a white.

So the probability to get a pair of white socks is 2/21.

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142 equals 176 minus f

vaieri [72.5K]

Answer:

can you be more clear?

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

You have a recipe for coconut cookies. The recipe makes 20 cookies. You need 100 cookies for a bake sale. Increase the recipe pr

lozanna [386]

Answer:

repeat this 5 times

Your welcome

7 0

3 years ago

Determine if the columns of the matrix form a linearly independent set. Justify your answer. Choose the correct answer below. A.

kondaur [170]

Th matrix is missing. The matrix is :

$\begin{bmatrix}1 &-4 &4 \\ -4 &16 & 4 \end{bmatrix}$

Solution :

The column of the matrix are $\begin{bmatrix}1\\ -4\end{bmatrix}$ , $\begin{bmatrix}-4\\ 16\end{bmatrix}$ , $\begin{bmatrix}4\\ 4\end{bmatrix}$

Now each of them are vectors in $IR^2$ . But $IR^2$ has dimensions of 2. But there are 3 column vectors, hence they are linearly dependent.

Therefore, the column of the given matrix does not form the $\text{linearly independent set}$ as the set contains $\text{more vectors}$ than there are entries in each vector.

Therefore, option (D) is correct.

4 0

3 years ago

Show that a/(b+1)-a/(b+1)^2 can be Written as ab/(b+1)^2

diamong [38]

Answer:

see this img

Step-by-step explanation:

img ☻

7 0

3 years ago

In the diagram below, the value of y must be

REY [17]

Answer:

y = 45°

Step-by-step explanation:

4 sides = 360°

(2y+1)° + y° + 112° + 112° = 360°

2y + y = 360 - 112 - 112 - 1

3y = 135

y = 135÷3

= 45°

4 0

3 years ago