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Olin [163]
2 years ago
12

4x + 9y =-14 please hurry and answer

Mathematics
1 answer:
MrRa [10]2 years ago
4 0

Answer:

Step-by-step explanation:

4x+9y=-14

make x 0

9y=-14

y=-1.5(repeating)

to figure out x make y zero.

4x=-14

x=-3.5

hope this helped!

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A circular logo is enlarged to fit the lid of a jar. The new diameter is 50 per cent larger than the original. By what percentag
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Define f(0,0) in a way that extends f to be continuous at the origin. f(x, y) = ln ( 19x^2 - x^2y^2 + 19 y^2/ x^2 + y^2) Let f (
kirill115 [55]

Answer:

f(0,0)=ln19

Step-by-step explanation:

f(x,y)=ln(\frac{19x^2-x^2y^2+19y^2}{x^2+y^2}) is given as continuous function, so there exist lim_{(x,y)\rightarrow(0,0)}f(x,y) and it is equal to f(0,0).

Put x=rcosA annd y=rsinA

f(r,A)=ln(\frac{19r^2cos^2A-r^2cos^2A*r^2sin^2A+19r^2sin^2A}{r^cos^2A+r^2sin^2A})=ln(\frac{19r^2(cos^2A+sin^2A)-r^4cos^2Asin^a}{r^2(cos^2A+sin^2A)})

we know that cos^2A+sin^2A=1, so we have that

f(r,A))=ln(\frac{19r^2-r^4cos^2Asin^a}{r^2})=ln(19-r^2cos^2Asin^2A)

lim_{(x,y)\rightarrow(0,0)}f(x,y)=lim_{r\rightarrow0}f(r,A)=ln19

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8 0
2 years ago
ris is a botanist who works for a garden that many tourists visit. The function f(s) = 2s + 25 represents the number of flowers
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Answer:

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PolarNik [594]

Answer:

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Step-by-step explanation:

To solve for t, divide by its coefficient:

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Then you can write it in function form if you like:

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_____

* Of course, the rules of equality say you must divide <em>both sides</em> of the equation by the same number.

4 0
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Read 2 more answers
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