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3 years ago

Is it right ????????

Mathematics

1 answer:

Korolek [52]3 years ago

6 0

Answer:

yeah

Step-by-step explanation:

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A local college student will be randomly selected to attend a leadership conference in Washington DC there are 2016 local colleg

bezimeni [28]

Male student: 40/100 = 2/5
graduate: 520/2106 = 65/252

2/5 + 65/252

= 829/1260 ( this is the probability)

5 0

3 years ago

Find four geometric means between 25 and 800.

SVEN [57.7K]

Actually, you have to find four missed terms of geometrical sequence. Denote

$a_1=25,\\ a_6=800$

and r - ratio, then

$a_2=a_1\cdot r=25r,\\a_3=a_1\cdot r^2=25r^2,\\a_4=a_1\cdot r^3=25r^3,\\a_5=a_1\cdot r^4=25r^4,\\a_6=a_1\cdot r^5=25r^5$ .

Since $a_6=800$ , you have that $800=25r^5$ , then

$r^5=\dfrac{800}{25} =32,\\r=2$ .

Now substitude r=2 in each of unknown 4 terms:

$a_2=25\cdot 2=50,\\a_3=25\cdot 2^2=100,\\a_4=25\cdot 2^3=200,\\a_5=25\cdot 2^4=400$ .

Answer: four geometric means between 25 and 800 are 50, 100, 200, 400.

8 0

3 years ago

The force f acting on a charged object varies inversely to the square of its distance r from another charged object. When 2 obje

o-na [289]

Answer: The force, F, acting on a charged object varies inversely to the square of its distance, r, from another charged object. When the two objects are 0.64 meter apart, the force acting on them is 8.2 Newtons

Step-by-step explanation: )

7 0

3 years ago

Whats slope intercept form for 2x- 5y=10

damaskus [11]

Answer:

y=-2/5x-2

Step-by-step explanation:

First, you put x to the other side of the equation so you get y alone, getting the equation of -5y=-2x+10. In order to just have y on one side, you need to divide the whole equation by -5. This leads to the final answer of y=-2/5x-2.

3 0

2 years ago

3(x-2) + 7x = 1/2(6x-2)

victus00 [196]

Answer:

x=5/8

Step-by-step explanation:

11x-6=3x-1

-3x -3x

8x-6=-1

+6 +6

8x=5

8/8 5/8

x=5/8

7 0

3 years ago