Use percents, percent equations, and/or percent proportions to solve the application.There are approximately 1,111,529 registered nurses in a given country. It is expected that this number will grow to 1,544,091 over the next three years. What is the percent increase? Round to the nearest tenth of a percent.
A. 38.9%
B. 3.9%
C. 28.0%
D. 2.8%
Answer: A
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A hypothesis test is to be performed. State the null and alternative hypotheses.In a clinical study of an arthritis medication, 28% of those taking the placebo reported improvement. The manufacturer of the medication claims that among those taking the medication, the proportion reporting improvement will be higher than this.
A. Null hypothesis: proportion reporting improvement < 28% Alternative hypothesis: proportion reporting improvement > 28% B. Null hypothesis: proportion reporting improvement > 28% Alternative hypothesis: proportion reporting improvement = 28% C. Null hypothesis: proportion reporting improvement = 28% Alternative hypothesis: proportion reporting improvement > 28% D. Null hypothesis: proportion reporting improvement = 28% Alternative hypothesis: proportion reporting improvement ? 28%
Write as a fraction in simplest form.13
%
A. 
B. 
C. 
D. 
Simplify the expression.- 
+ 11y + 
y - 6 + 
y
A. 
y - 5
B. 13 + 5
C. 
y
D. 13y - 
Multiply and simplify any radicals in your answer. Assume that all variables represent positive real numbers.(
+ 3)(
- 3)
A. 7
B. 1
C. 19
D. 10 - 2