Simplify.-3.9(6.8x - 2.6y - 1.9)
A. -26.52x + 10.14y - 1.9
B. -26.52x - 2.6y - 1.9
C. -26.52x + 10.14y + 7.41
D. -26.52x - 10.14y - 7.41
Answer: C
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A hypothesis test is to be performed. State the null and alternative hypotheses.The governor of a state claims that since his tax cuts have taken effect, the unemployment rate has dropped. The unemployment rate in the state had been 6.3% prior to the tax cuts.
A. Null hypothesis: unemployment rate < 6.3% Alternative hypothesis: unemployment rate = 6.3% B. Null hypothesis: unemployment rate > 6.3% Alternative hypothesis: unemployment rate < 6.3% C. Null hypothesis: unemployment rate = 6.3% Alternative hypothesis: unemployment rate ? 6.3% D. Null hypothesis: unemployment rate = 6.3% Alternative hypothesis: unemployment rate < 6.3%
Choose the correct conclusion.As a special promotion, the Green Thumb organic foods chain said that everyone who came to one of their stores between noon and 1 p.m. on January 4 would be offered a free loaf of 23-grain bread. They did not keep this promise. Therefore, between noon and 1 p.m. on January 4:
A. The Green Thumb chain ran out of 23-grain bread. B. At least one person who came to a Green Thumb store was offered a free loaf of 23-grain bread. C. No one who came to a Green Thumb store was offered a free loaf of 23-grain bread. D. At least one person who came to a Green Thumb store was not offered a free loaf of 23-grain bread.
Use a commutative property to complete the statement. Do not simplify.a + (-5) = 
A. -a + 5 B. -5a C. -5 + a D. 5 + a
Find percent notation for the number in decimal notation.Rainfall decreased by 0.490 this year.
A. 4.9% B. 0.0490% C. 49% D. 0.490%