2) Comment évolue la population chinoise entre 2000 et 2020 ? Que constatez vous entre les deux périodes?

Simplify. \( 9^{\frac{3}{2}} \) The solution is \( \square \). (Simplify your answer. Type an integer or a fraction.)

Evaluate \( \sin \left(\tan ^{-1}\left(-\frac{7}{10}\right)\right) \), giving an exact answer.

Draw a picture of the story problems. Answer the story problems. A 35 foot ladder leans against the top of a building. The ladder's base is 11.5 feet from the building. Find the angle of elevation between the ladder and the ground. Round your answer to the nearest tenth. Angle of Elevation \( =\square \) degrees.

Resolver las siguientes de cada una. Dichas div a) \( \left(-3 x+2 x^{3}\right. \) b) \( \left(x^{4}-2 x-\right) \)

Consider the hypotheses: \( H_{0}: \mu=75 \) against \( H_{1}: \mu<75 \). Assume that a random sample of 100 observations yielded a sample mean of 70 and that the population standard deviation is 30 . The \( p \)-value of the test is