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3 years ago

3] If the p.d.f., of the random variable X is given by

Mathematics

1 answer:

ELEN [110]3 years ago

4 0

Answer:

PDF for a continuous random variable is given. Use the PDF to find (a) and the CDF.

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Help please 1. Solve the system of equations using substitution. Show your work in the workspace provided below.

katen-ka-za [31]

Answer:

x=4 y=3

its the answer for both

hope that helps

4 0

3 years ago

Earth revolves around the Sun in 365 days, but the planet Mercury does so in only 88 days. Compared to Earth, how many more comp

Elena L [17]

Answer:

In a 1000 days Mercury will make 8.624 more revolutions than Earth!

Step-by-step explanation:

<u>Earth</u> takes 365 days to make a complete revolution.

we can say that the rotational speed of Earth is $\dfrac{1}{365}\frac{\text{rev}}{\text{day}}$

so, in a 1000 days how many revolutions will Earth have made?

$\dfrac{1}{365}\frac{\text{rev}}{\text{day}}\times(1000\,\text{day})$

see that the 'day's cancel out. Simply multiply the two numbers!

$2.739\text{rev}$

<u>Next, do the same for Mercury</u>

we can say that the rotational speed of Mercury is $\dfrac{1}{88}\frac{\text{rev}}{\text{day}}$

as it completes 1 revolution in 88 days.

so, in a 1000 days how many revolutions will Mercury have made?

$\dfrac{1}{88}\frac{\text{rev}}{\text{day}}\times(1000\,\text{day})$

multiplying by 1/88 by 1000 yields:

$11.363\text{rev}$

The Question is how many MORE complete revolutions will Mercury make in 1000 days?

We need to subtract the revolutions of Mercury with Earth to find how far ahead is Mercury from Earth

$11.363\text{rev} - 2.739\text{rev}$

$8.624\text{rev}$

In a 1000 days Mercury will make 8.624 more revolutions than Earth!

5 0

3 years ago

Sharon spent $3.45 on sunflower seeds. The price of the sunflower seeds is $0.89 per pound. How many pounds of sunflower seeds d

garik1379 [7]

Sharon bought about 3.8 pounds

8 0

3 years ago

Read 2 more answers

How do I do Q43B someone please help!!

Setler79 [48]

43b) WCD = (6-2)*180/6 = 120 BCD = (5-2)*180/6 = 108 360-120-108=132 (angle at a point) CBW = (180-132)/2 = 24 (isosceles triangle)

5 0

3 years ago

Solve for x: -4(3x − 2) = 6x + 2

stepladder [879]

Answer:

x = 1/3

Step-by-step explanation:

-4(3x − 2) = 6x + 2

Distribute

-12x +8 = 6x +2

Add 12x to each side

12x-12x+8 = 6x+2+12x

8 = 18x+2

Subtract 2 from each side

8-2 = 18x+2-2

6 = 18x

Divide each side by 18

6/18 = 18x/18

1/3 =x

4 0

3 years ago

Read 2 more answers