A ratio is the quantitative relation between two amounts showing the number of times one value contains or is contained within the other.
The relationship between variance and standard deviation is :
Standard deviation = sqrt (variance),
Variance = standard deviation^2.
hope this help
2(4x-1) + 3(3-2x)=0
distribute
8x-2+9-6x=0
add like terms
2x+7=0
subtract 7 from both sides
2x= -7
divide both sides by 2
x=-7/2
Hi! The answer to that question is B and D cause if you read the promblem it is it!