HELP PLEASE 2. In triangle ABC, 4A is a right angle, and m&B=45°.
(1 pol
с
12 ft
B
What is the length of BC? If your answer is not an integer, leave it in simplest radical form.
O 24 ft
O 12.3 At
O 12 / At
O 12 ft

Anyone? 15m is what percent of 60m; 3m; 30m; 1.5 km?

Will mark the brainliest.paula makes stained-glass windows and sells them to boutique stores. if her costs total $12,000 per year plus $4 per window for the frame. how many windows must she produce to earn a profit of at least $48,000 in one year if she sells the windows for $28 each?

Agroup of student volunteers participates in a study designed to assess several behavioral interventions for improving output in a repetitive task. prior to the beginning of the study, all volunteers unknowingly observed, and their output is measured. at the beginning of the study, prior to any intervention, the volunteers perform the same task under the observation of a study administrator, and their overall output increases. which of the following terms describes this phenomenon? a. simpson's paradox b. hawthorne effect are d. novelty effect d. pygmalion effect e. observer-expectancy effect