Use polar coordinates to find the limit. [If (r, θ) are polar coordinates of the point (x, y) with r ≥ 0, note that r → 0+ as (x, y) → (0, 0).] (If an answer does not exist, enter DNE.) lim (x, y)→(0, 0) 9e−x2 − y2 − 9 x2 + y2

complete question is:

Use polar coordinates to find the limit. [If (r, theta) are polar coordinates of the point (x,y) with r>=0, note that r tends to 0+ as (x,y) tends to (0,0).] lim (x,y) tends to (0,0) x^3+y^3/x^2+y^2

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Step-by-step explanation:

2. angles qrt and qst both measures 156 degrees.

step-by-step explanation:  

we have been given a diagram of a circle and we are told that measure of arc qvt is 156 degrees.  

we can see from our given diagram that angle qrt and angle qst subtends to arc qvt.

since we know that angles subtended by the same arc at the circumference are always equal.

by angle subtended by same arc theorem, measure of angle qrt and angle qst will be equal to the measure of arc qvt.

therefore, angles qrt and qst both measures 156 degrees and 2nd statement is the correct choice.

the correct answer is $7.38

step-by-step explanation: