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what number when multiplied by itself is 21 greater than the preceding number when it is multiplied by itself ?

Year : 1930,1931,1932,1933,1934,1935,1936,1937,1938 price of wheat : 4,5,6,7,8,9,10,11

Antonio can fill an order in 5 hours, Brian can do it in 9 hours. Working together how many hours will it take them to fill an order?

which sentence should be punctuated with a exclamation point? a)I enjoy reading graphic novels b) What is the names of the planet c) Look out behind you d) I wonder why he did that

If f(z) = y + ln x + i (x/ y) .what is the domain of f and On what part of the complex plain the function is differentiable? where z=x+iy

A pyro technician plans for two fireworks to explode at the same height in the air. Firework A travels at 280ft/s, firework B travels at 180ft/s. Firework B is launched 0.25 seconds before firework...

All of the following are strong indicators that some condition is viewed by the public as problematic or troublesome except: a. Laws are developed to prevent or punish the condition...

here is question number 7 from Harries and Laitenin's analysis chemistry book

Statistics..NEED HELP FAST/ ASAP. Thankyou   Find the area under standard normal curve A. To the right of z=-.65 B. Between -z=-2.33 and z=+2.33   Give the formula for...