Answer:
r=31
Step-by-step explanation:
2r=62
r=31
Answer:
y=-8x+12
Step-by-step explanation:
8 is you m and 12 is your b
Answer:
2.1
Step-by-step explanation:
The expected value of a probability is given by the formula:
E(x) = Σxp(x)
Therefore from the table showing the winnings of a game, the expected value of the probability distribution is:
E(x) = Σxp(x) = (0 * 0.5) + (2 * 0.2) + (4 * 0.15) + (6 * 0.1) + (10 * 0.05)
E(x) = 0 + 0.4 + 0.6 + 0.6 + 0.5 = 2.1
Hence we can conclude that the expected value of the winnings of the game is 2.1.
Answer:
The volume of the cylindrical tank is 176.625 cubic feet.
Step-by-step explanation:
Given : The tank is 9 feet high and has a diameter of 5 feet.
To find : Marjorie needs to calculate how much water a cylindrical tank will hold ?
Solution :
The volume of a cylinder is 
The diameter is d=5 feet
The radius is 
feet.
The height is h=9 feet.
Substitute the value in the formula,



The volume of the cylindrical tank is 176.625 cubic feet.
Answer:
$2289.35
Step-by-step explanation:
We have been given that as purchasing assistant at Rosie’s Retail, you order a unique item for $1,055. You mark it to sell for 117% of the purchasing cost.
As the selling price equals to the cost of item plus markup, so to find the selling price of the item we can set an equation as:



Therefore, we will sell the item for $2289.35.