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1. x(x+3) = x²+3x
Step by Step:
Apply the Distributive law: (a=x, b=x, c=3)
= xx + x × 3
= xx + 3x
= xx = x²
= x²+3x
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2. 3x(4x-7) = 12x²-21x
Step by Step:
Apply the Distributive law: a(b-c) = ab - ac
(a=3x, b=4x, c=7)
= 3x × 4x - 3x × 7
= 3 × 4xx - 3 × 7x
= 12x² - 21x
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3. -5x(6x-2) = -30x²+10x
Step by Step:
Apply the Distributive law: a(b-c) = ab - ac
(a = -5x, b = 6x, c = 2)
= -5x × 6x - (-5x) × 2
Apply minus - plus rule: -(-a) = a
= -5x × 6xx + 5 × 2x
= -30x² + 10x
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1. x(x+3) = x²+3x
2. 3x(4x-7) = 12x²-21x
3. -5x(6x-2) = -30x² + 10x
Answer:
go on a car ride to the mountains and let them scream their anger out ?
Explanation:
Answer:
Assuming that more physical contact is associated with higher relationship satisfaction, this study is a demonstration of predictive validity.
Explanation:
The survey above is an example of predictive validity. This term refers to a research that has the ability to predict the future of individuals, based on the analysis of some factors and characteristics that these individuals have. This can be seen in the question above because the researcher predicts the future satisfaction of couples in a relationship based on the amount of physical contact they have had.
Society for the Reformation of Juvenile Delinquency conducted campaigns against the "corrupting influence of taverns and theaters and opposed the use of jails to house children"
Answer: Option A
<u>Explanation:</u>
Juvenile delinquency is the habitual committing of the crimes or offences by the persons who are young and are not adults. The society which was formed for the reformation of juvenile delinquency conducted campaigns against use of jails for children.
They were not in favor of using the imprisonment for the criminals who were not of legal age. They wanted other ways and methods to reform the criminals of such young people and for reformation of juvenile.
Answer:
Correct answer is food crops.
Explanation:
As we can see from the map most states in the Northeastern part focused their development on the food crops.
Cash crops were dominant in the Southeastern part, while in the Middle states we have mixture of food and cash crops.
