The answer is 2 because they are divisible by two
Answer:
congruent acute angle, we will use properties of similar triangles to establish trigonometric function ... θ = - with θ in Quadrant III, what is. ( ) sin θ ? 35. If. ( ). 2 sin. 3 θ = - with θ in Quadrant III, what is. ( ) cos θ ? 36. If. ( ).
28. tan 60°. 29. sin 30°. 30. cos 45°. Use your calculator to find each trigonometric ratio. Round to the nearest hundredth. 31. tan 51°. 32. sin 80°. 33. cos 77°. 34. tan 14°. 35. sin 55°. 36. cos 48°. Skills Practice p. S18
Answer:
3
Step-by-step explanation:
0.31 rounded to the nearest tenth would be 0.3
This Chart should help you in the future:
Answer:
We can say at 99% confidence that the true mean is between (91.674;98.326)
Step-by-step explanation:
Data given
represent the sample mean
population mean (variable of interest)
s=6.6 represent the sample standard deviation
n=30 represent the sample size
The confidence interval for the mean is given by the following formula:
(1)
We need to find the critical value
and we need to find first the degrees of freedom, given by:
Since the Confidence is 0.99 or 99%, the value of
and
, and we can use excel, a calculator or a table to find the critical value. The excel command would be: "=-T.INV(0.005,29)".And we see that
And replacing we got:
We can say at 99% confidence that the true mean is between (91.674;98.326)