Answer:
1, 2, 4
Step-by-step explanation:
Why is it necessary that researchers use randomization to assign each of the adults to a group?
- randomization ensures each group will be similar in everything except the time of day they are assigned to work
- randomization prevents the adults from selecting their own group
- randomization eliminates lurking variables from the experiment
- randomization prevents the researches from specifically assigning all adults who regularly stay up late to complete assigned tasks late at night
- randomization ensures that there will an equal number of adults in each group
Randomization ensures that there is no selection bias.
Answer: The answers are 4x^2(x^2+5x+3), (x–6) (x+2), (x–9), 3(x–7)(x–4), (9x–10) (9x+10), 3(y^2+2)(x^2+4), (5x+2), 2(x–4)(6x+1), 2(x + 4)(y - 4), and the factored form is (3x–4)(x–3).
Step-by-step explanation: To solve all the factoring equations, factor using the AC method or factoring the polynomials, the 3 steps are Grouping: using the sum-product pattern, common factor from the two pairs, and
rewrite the expression in factored form.
Use PEMDAS
P Parentheses first
E Exponents (ie Powers and Square Roots, etc.)
MD Multiplication and Division (left-to-right)
AS Addition and Subtraction (left-to-right)
Answer:
8 percent
Step-by-step explanation:
Answer:
sorry for wrong answer
Step-by-step explanation:
Labor unions arose in the nineteenth century as increasing numbers of Americans took jobs in factories, mines, and mills in the growing industrial economy.
The Knights of Labor, founded in 1869, was the first major labor organization in the United States. The Knights organized unskilled and skilled workers, campaigned for an eight hour workday, and aspired to form a cooperative society in which laborers owned the industries in which they worked.
The Knights’ membership collapsed following the 1886 Haymarket Square riot in Chicago. By 1886 the American Federation of Labor (AFL), an alliance of skilled workers’ trade unions, was growing.
