Given the function f (a, y)-422 + 6xy 5y hat is df(x,) dr given the function f (x, y)42 6zy 5y what is day)? given the function f (a, y) -422 +6zy 5y what is ) given the function f (z, y) = 4x2 + 6xy-5y2 what is du? given the function f (x, y) 4x2 + 6xy-5y2 what is u) dy dz2 2 drdy

10000

step-by-step explanation: divide by 2,

b. 1.25 hr

step-by-step explanation:

if you have a constant speed of 60 mph, then you have a ratio between 60 mi. to 1 hr. dividing both sides by 60 we get the ratio

1 mi. to

then mult. both sides by 75 we get the ratio

75 mi. to

simplifying we get

75 mi. to

or 1.25 hr.

5+2x=a

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3

step-by-step explanation: