F 27.5
Each key on a piano has a certain frequency, related to its position on the keyboard.
The relationship can be described using the equation n = 1 + 12 logz where n is
Che number of the key and f is the frequency in hertz. If middle C has a frequency of
311.1 Hz, what number key is it on a regular keyboard? Round to the nearest whole
number, if necessary.
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When are triangles considered similar? a. corresponding angles are equal andcorresponding sides are proportionalb. corresponding angles are proportional andcorresponding sides are equalc. corresponding angles are equal orcorresponding sides are proportionald. corresponding angles are proportional orcorresponding sides are equal select the best answer from the choices providedmark this and retumsave and exitnext

What is the difference between the equations of a vertical and a horizontal line?

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? 1. define a variable for the situation. 2. write an inequality that represents her profit. note: revenue is money coming in. cost is money going out. profit is the difference between the revenue and the cost. in other words: revenue - costs profit 3.using words, describe how many windows she must sell to have a profit of at least $48,000.