X/(x+2)/(1/x)+(1/x+2)<br> Would it be x^2 + 2x + 2/ 2x + 2 ? the answer?

What is the sum of 3 + ( - 7 ) + 9? Hint: Add the first two numbers, then add the result to the third number.

Verizon [17]

Answer:

5

Step-by-step explanation:

8 0

3 years ago

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The computers of six faculty members in a certain department are to be re- placed. two of the faculty members have selected lapt

FinnZ [79.3K]

Answer:

A) The probability that both selected setups are for laptop computers is 0.067

B)The probability that both selected setups are desktop machines is 0.4

C)The probability that at least one selected setup is for a desktop computer is 0.933

D)The probability that at least on computer of each type is chosen for setup is 0.533

Step-by-step explanation:

Number of laptops = 2

Number of desktops = 4

Total number of outcomes = 15

a) what is the probability that both selected setups are for laptop computers?

Total number of outcomes = 15

So, the probability that both selected setups are for laptop computers = $\frac{1}{15}=0.067$

b)what is the probability that both selected setups are desktop machines?

Number of desktops = 4

Number of desktops to be chosen = 4

We will use combination

No. of ways to select two desktops = $^4C_2=\frac{4!}{2!(4-2)!}=6$

So,the probability that both selected setups are desktop machines= $\frac{6}{15}=0.4$

(c) what is the probability that at least one selected setup is for a desktop computer?

P(at least 1 desktop)=1-P(No desktop)

P(at least 1 desktop)=1-P(both laptops)

P(at least 1 desktop)=1-0.067=0.933

So,the probability that at least one selected setup is for a desktop computer is 0.933

d) what is the probability that at least on computer of each type is chosen for setup?

No. of ways to select one desktop $=^4C_1=\frac{4!}{1!(4-1)!}=4$

No. of ways to select one laptop = $^2C_1=\frac{2!}{1!(2-1)!}=2$

So, No. of ways to select one laptop and one desktop= $4 \times 2 = 8$

So,the probability that at least on computer of each type is chosen for setup= $\frac{8}{15}=0.533$

6 0

3 years ago

Someone help with this question pls

ValentinkaMS [17]

Answer:

Step-by-step explanation:

<em>A chord of a circle is a straight line segment whose endpoints both lie on a circular arc.</em>

The line PQ and QS are radiuses since they are a point from the center to the arc.

The lines PR is considered a diameter since it starts from an arc, runs through the center and ends at another arc.

4 0

2 years ago

The perimeter of a playing field for a certain sport is 232 ft . The field is a rectangle and the length is 46 ft longer than th

oksian1 [2.3K]

Answer:

length=79

width=37

Step-by-step explanation:

P=2(L+W)

2(42+x)+2(x)

84+4x=232

232-84=4x

148=4x

divide both sides by 4 to get x

x=37

length=42+37=79

width=37

7 0

3 years ago

Niña jumps 225 times in 3 minutes. At this rate how many times can she jump in 5 minutes

Tresset [83]

225/3 = 75
75 x 5 = 375

Hope this helps.

5 0

3 years ago

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X/(x+2)/(1/x)+(1/x+2) Would it be x^2 + 2x + 2/ 2x + 2 ? the answer?