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SVEN [57.7K]
3 years ago
7

If you have a chance to win $500 for drawing a card of 10 of any suit from a standard deck of cards, what is the value of expect

ation?
Mathematics
1 answer:
dem82 [27]3 years ago
6 0

Answer:

The expected value is $38.46.

Step-by-step explanation:

The probability of drawing a 10 from any suit is 4/52.  Multiply this by the earnings, 500:


4/52(500) = 2000/52 = 38.46


Hope this helps!


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svlad2 [7]
You could divide both sides by two to get a rectangle that is 75 by 200
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3 years ago
Given the height, h, and the volume v of a certain cylinder, alex uses the formula v ph r 5 !§ to compute its radius, r, to be 1
dmitriy555 [2]
We know that
volume of a cylinder=pi*r²*h
r=√[V/(pi*h)]
r=10 m

A <span>second cylinder has 
V2=V-----> volume of the second cylinder
h2=25*h----> height of the second cylinder
r2----> radius of the second cylinder
r2=</span>√[V2/(pi*h2)]----> r2=√[V/(pi*25*h)]---> r2=(1/5)*√[V/(pi*h)

r2=(1/5)*10-----> r2=2 m

the answer is
<span>the radius of the second cylinder is 2 m</span>
7 0
3 years ago
In a hydroelectricity production, water falls from a dam into a turbine wheel 49 m below. What is the velocity of water at the t
svlad2 [7]

Answer:

31m/s

Step-by-step explanation:

Using the equation of motion

v² = u² + 2gH

H is the height of fall = 49m

g is the acceleration due to gravity = 9.8m/s²

u is the initial velocity = 0m/s

v² = 0² + 2(9.8)(49)

v²  = 960.4

v = √960.4

v = 30.9m/s

v ≈ 31m/s

Hence the velocity of water at the turbine is 31m/s

6 0
3 years ago
There were 4 apple trees planted and 3 pecan trees. 2 peach trees for 3 pecan trees. If there 24 peach trees, how many apple tre
abruzzese [7]
<h3>♫ - - - - - - - - - - - - - - - ~Hello There!~ - - - - - - - - - - - - - - - ♫</h3>

➷ 4 : 3

? : 3 : 2

The overall ratio is:

4 : 3 : 2 for apple trees to pecan trees, to peach trees.

24/2 = 12

12 x 4 = 48

There would be 48 apple trees.

<h3><u>✽</u></h3>

➶ Hope This Helps You!

➶ Good Luck (:

➶ Have A Great Day ^-^

↬ ʜᴀɴɴᴀʜ ♡

3 0
4 years ago
Read 2 more answers
Hii! help asap. i’ll give brainliest thanks!
vekshin1

Answer:

A

Step-by-step explanation:

Every object in a state of uniform motion will remain in that state of motion unless an external force acts on it.

Force equals mass times acceleration [ ].

For every action there is an equal and opposite reaction.

6 0
3 years ago
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