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Bad White [126]
2 years ago
7

How do I solve this?

Mathematics
1 answer:
vampirchik [111]2 years ago
4 0
4 , divide the x by the y to find a constant
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If: 5x + 14 = −7 ,Then: 5x + 14 − 14 = −7 − 14 This is an example of using...
Triss [41]
C. The Additive Inverse
7 0
3 years ago
the original price of a collectible model airplane is $115. The discounted price is $99. What is the percent of discount to the
storchak [24]

Answer:

$99/$115 x 100% = 86.086% of the original price  

So 100% - 86.086  

= 13.9 = 14%  

Or you could just do (115 - 99) x 100 which gets the same answer.

8 0
3 years ago
In a carnival​ game, the player selects a ball one at a​ time, without​ replacement, from an urn containing twotwo purplepurple
dezoksy [38]
<span>The urn contains 2 purple balls and 4 white balls. The player pay $4 for start the game and get $1.5 for every ball drawn until one purple ball is drawn. The maximal revenue would be $7.5 when 4 white balls and 1 purple balls are drawn.
If the purple ball is p and white ball is w, t</span>he possible sample space of drawings are {p, wp, wwp, wwwp, wwwwp}

<span>1. Write down the probability distribution for the player earning

The player earning </span>for each event depends on the number of balls drawn subtracted the ticket price.<span>
p= 2/6
The player earnings would be: 1*$1.5 -$4= - $2.5
wp= (4*2)/(6*5) = 4/15
</span>The player earnings would be: 2*1.5- $4= - $1
wwp= (4*3*2)/(6*5*4)= 1/5
The player earnings would be: 3*$1.5 -$4= $0.5
wwwp= (4*3*2*2)/(6*5*4*3*2)= 2/15 
The player earnings would be: 4*$1.5 -$4= $2
wwwwp= (4*3*2*2*1)/(6*5*4*3*2*1) = 1/15
The player earnings would be: 5*$1.5 -$4=  $3.5

2. Find its expected value

The expected value would be:
chance of event * earning 
You need to combine the 5 possible outcomes from the number 1 to get the total expected value.

Total expected value= (1/3 * - 2.5)+ (4/15*-1) + (1/5*0.5) + (2/15 *2) + ( 1/15 *3.5)= 
(-12.5  -4 + 1.5 + 4 + 3.5) /15= -$7.5
This game basically a rip off.
6 0
2 years ago
Can anyone help me with this im having some difficulty
Whitepunk [10]

Answer:

option C

Step-by-step explanation:

(a+b)(a+b) = a^2 + 2ab + b^2

7 0
2 years ago
Read 2 more answers
A building measure 8.4m wide by 9.3 the rest is in picture
Bad White [126]

Answer:

26.309932 MN  if gravity was normal gravity force and on basis salt water was 1030 kg/m3

Step-by-step explanation:

The rule below is something I just found.

To calculate the force of gravity of an object, use the formula: force of gravity = mg, where m is the mass of the object and g is the acceleration of the object due to gravity. Since g is always 9.8 m/s^2, just multiply the object's mass by 9.8 and you'll get its force of gravity

5 0
2 years ago
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