Which of the following are simple closed curves?
(a) A circle.
(b) A polygon.
(c) A cube.
(d) Both (a) and (b) are correct.
(e) Both (a) and (c) are correct.
(d) Both (a) and (b) are correct.
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A hypothesis test is to be performed. Describe the two possible outcomes of the test using the context of the given situation.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.The hypotheses are as follows:Null hypothesis: unemployment rate = 6.3% Alternative hypothesis: unemployment rate < 6.3%
A. Rejecting the null hypothesis means there is insufficient evidence that the unemployment rate is equal to 6.3%. Failing to reject the null hypothesis means there is insufficient evidence to conclude that the unemployment rate is equal to 6.3%. B. Rejecting the null hypothesis means there is evidence that the unemployment rate is less than 6.3%. Failing to reject the null hypothesis means there is insufficient evidence to conclude that the unemployment rate is less than 6.3%. C. Rejecting the null hypothesis means there is evidence that the unemployment rate is not equal to 6.3%. Accepting the null hypothesis means there is evidence to conclude that the unemployment rate is equal to 6.3%. D. Rejecting the null hypothesis means there is evidence that the unemployment rate is less than 6.3%. Accepting the null hypothesis means there is evidence to conclude that the unemployment rate is equal to 6.3%.
Round the following to the nearest ten, nearest hundred, and nearest thousand.7271
A.
| Ten | 7280 |
| Hundred | 7200 |
| Thousand | 8000 |
B.
| Ten | 7270 |
| Hundred | 7300 |
| Thousand | 7000 |
C.
| Ten | 7270 |
| Hundred | 7200 |
| Thousand | 7000 |
D.
| Ten | 7280 |
| Hundred | 7300 |
| Thousand | 7000 |
Graph the rational function.f(x) = 
A. 
B. 
C. 
D. 
Use the given trigonometric function value of ? to find the requested trigonometric function value of the acute angle ?. Rationalize the denominators where necessary.sin ? = 
Find sec ?.
A. 
B. 
C. 
D. 