Answer:
18x^2+6
Step-by-step explanation:
2(9x^2+3)
multiply each term in parentheses by 2
2 x 9x^2+2 x 3
calculate product
18x^2+2 x 3
multiply numbers
18x^2+6
A true
because 53•(41•11)=23,903 and (53•41)•11=23,903
Hope this helped
Answer:
response variable- time required for water to turn to ice
control group- second freezer
explanatory variable- new formula
Step-by-step explanation: