Contracts for two construction jobs are randomly assigned to one or more of three firms, A, B, and C. Let X1 denote the number of contracts assigned to firm A and X2 the number of contracts assigned to firm B. Each firm can receive 0, 1, or 2 contracts. FInd EX1. Find VarX1

answer: just subtact the units and then add the non negative : happy to

step-by-step explanation:

5 quiero

6 vamos

7 puedan

8 quiero

9pedemos

10 dorme

step-by-step explanation:

45.36 feet per second

step-by-step explanation:

tyrone travels 30 miles in 58.2 minutes.  

1 mile = 5280 feet; this means he travels

30(5280) = 158400 feet in 58.2 minutes.

1 minute = 60 seconds; this means he travels 158400 feet in

58.2(60) = 3492 seconds.

this gives us the unit rate of

158400/3492 = 45.36 feet per second.

the linear relationship that represents a variation in direct proportion is the linear function that varies according to the numbers of its domain, for example the cost of producing x number of items can be represented in direct proportion by f (x) = mx + b, where m is the constant of proportionality, x the number of articles produced and b the fixed cost