Select the correct answer. The volume of a cone is `V = 1/3 pi r^3 h`. The height of the cone is 8 inches and the radius is 4 inches. Estimate the volume of the cone when the radius is decreased 0.3 inches and the height remains constant.

A.
415.58 cu. in.
B.
415.69 cu. in.
C.
424.36 cu. in.
D.
424.6 cu. in.

If sin θ=24/25 and 0 less than or equal to θ less than or equal to π/2, find the exact value of tan 2θ. answers; a) -527/336 b) -336/527 c)7/24 d) 24/7

Ernest is purchasing a $175,000 home with a 30-year mortgage. he will make a $15,000 down payment. use the table below to find his monthly pmi payment.

Do social recommendations increase ad effectiveness? a study of online video viewers compared viewers who arrived at an advertising video for a particular brand by following a social media recommendation link to viewers who arrived at the same video by web browsing. data were collected on whether the viewer could correctly recall the brand being advertised after seeing the video. the results are given below.correctly recalled the brandarrival 409153browsing20484b. conduct the hypothesis test, using the 0.025 level of significance.what is the value of the test statistic? χ2stat=what is the p-value? p-value=is this value significant atα=0.025?