Answer:
x^2+2x
Step by step explanation:
(2x^2+3x)-(x^2+x)
Remove unnecessary parentheses
2x^2+3x-(x^2+x)
When there is a - in front of an expression in parentheses, change the sign of each term of the expression and remove the parentheses
2x^2+3x-x^2+x
Collect like terms
x^2+3x-x
Answer:
5 FULL necklaces.
Step-by-step explanation:
85/15
About 5.667
0.667 of a necklace doesn't count
So just 5! :)
Answer:
698 Miles
Step-by-step explanation:
89.75-19.95=69.8
69.8/0.10=698
Answer:
Step-by-step explanation:
A discrete variable is one which can be counted or which can be associted with the set of natural numbers.
A continuous variable is one which cannot be counted.
a. of unbroken eggs in a randomly chosenstandard egg carton
--Discrete
b. of students on a class list for a particular course who are absent on the first day of classes
----Discrete
c. of times a duffer has to swing at a golfball before hitting it
----Discrete
d. of a randomly selected rattlesnake
--Continuous
e. of royalties earned from the sale of a firstedition of 10,000 textbooks
--Continuous
f. of a randomly chosen soil sample
--Continuous
g. (psi) at which a randomly selected tennisracket has been strung
--Continuous
h. number of coin tosses required for threeindividuals to obtain a match (HHH or TTT)
---Discrete
