If $21,000 is invested at an interest rate of 5% per year, find the amount of the investment at the end of 4 years for the following compounding methods. (Round your answers to the nearest cent.) (a) Semiannual
$
(b) Quarterly
$
(c) Monthly
$
(d) Continuously
$

Flashback to semester a. are triangles pqr and stu congruent? what is the congruency that proves they are congruent? what is the perimeter of triangle pqr? show your work.

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?

Write the expression as a single natural logarithm. 2 in a - 4 in y