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3 years ago

PLSSS HELP ME THIS WOULD MEAN A LOT :((

Mathematics

1 answer:

Svetlanka [38]3 years ago

8 0

Answer:

Option D

Step-by-step explanation:

Increasing intervals represent the inputs that make the graph rise, or the intervals where the function has a positive slope. Decreasing intervals represent the inputs that make the graph fall, or the intervals where the function has a negative slope.

The inputs ( − values) that make () rise are

(-2,∞)

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There are 3 directors, 4 management executives, 2 statisticians and 1 administrator. A committee of 4 members among them is to b

Vsevolod [243]

Answer:

1) 4/35

2) 11/14

3) 5/6

Step-by-step explanation:

First find the number of selections possible.

$\frac{10!}{(10-4)!4!} = 210$

There are 210 possible selections. Now we can determine the possibility for each group. For the first probability, since we only want one member from each committee, you would create a fraction by (group members in total / group member being extracted). For this instance, since its only one, we will do whole numbers. Multiply each other.

$4*3*2*1=24$

The probability for each member to get selected from each kind is : $24/210$ or can be simplified to $4/35$ .

The probability of (I assume) at least one administrator is slightly different. Separate our two selections, the other three and the administrator. Find the number of selections possible for the other three... 4+3+2 = 9 others.

Find the probability for both a administrator included and three others.

$\frac{11}{3} * \frac{1}{1} \\\frac{11!}{(11-3)!3!} \\\\165$

$\frac{165}{210} = \frac{11}{14}$

The probability for an administrator and the other three is 165/210 or 11/14.

For the last one, you will figure out what the probability is for no director and use that % to substract from 100.

4+2+1 = 7

Get selections possible.

$\frac{7!}{(7-4)!4!} = 35$

Get probability of no director.

$\frac{35}{210} = \frac{1}{6}$

Substract 1/6 from 100%

1 - 1/6 = 5/6

The probability of having at least one director is 5/6.

7 0

3 years ago

A ramp is being built to help people with limited mobility to access a doorway that is 16 inches above the ground. If the angle

beks73 [17]

Answer:

12 degree how long will the ramp be round your answer

5 0

3 years ago

What is the value of C in the matrix equation below?

lara [203]

Given:

The matrix equation is:

$\begin{bmatrix}-18&3&5\end{bmatrix}-C=\begin{bmatrix}-22&1&12\end{bmatrix}$

To find:

The value of matrix C.

Solution:

Let $A=\begin{bmatrix}-18&3&5\end{bmatrix},B=\begin{bmatrix}-22&1&12\end{bmatrix}$ . Then the given equation can be rewritten as

$A-C=B$

$-C=B-A$

$C=-(B-A)$

$C=A-B$

On substituting the values of the matrices, we get

$C=\begin{bmatrix}-18&3&5\end{bmatrix}-\begin{bmatrix}-22&1&12\end{bmatrix}$

$C=\begin{bmatrix}-18-(-22)&3-1&5-12\end{bmatrix}$

$C=\begin{bmatrix}-18+22&2&-7\end{bmatrix}$

$C=\begin{bmatrix}-4&2&-7\end{bmatrix}$

Therefore, the correct option is C.

6 0

3 years ago

Read 2 more answers

I really need help on this problem respond ASAP

blsea [12.9K]

First find the area of the leftmost rectangle:

A=l*w
A=4*2 (the 2 comes from 5-3)
A=8

Then find the area of the rightmost rectangle:

A=l*w
A=3*3 (the second 3 comes from 4-1)
A=9

So when you add 8 and 9, you get 17

Hope this helps

4 0

3 years ago

Read 2 more answers

9 is what percent of 545.8

Igoryamba

The answer is 49.12199...

6 0

3 years ago