Write the equation in standard form and classify the comic section it defines.
1 answer:
Comlplete the squares for each
gropu x's and y's and solve
remember completeing square? do tat for x's and y's
so
(2x²-16x)+(-4y²+48y)-120=0
2(x²-8x)-4(y²-12y)-120=0
2(x²-8x+16-16)-4(y²-12y+36-36)-120=0
2((x-4)²-16)-4((y-6)²-36)-120=0
2(x-4)²-32-4(y-6)²+144-120=0
2(x-4)²-4(y-6)²=8
divide both sides by 8
das be hyperbola
2.
(2x²+20x)+(4y²+8y)+46=0
2(x²+10x)+4(y²+2y)+46=0
2(x²+10x+25-25)+4(y²+2y+1-1)+46=0
2((x+5)²-25)+4((y+1)²-1)+46=0
2(x+5)²-50+4(y+1)²-4+46=0
2(x+5)²+4(y+1)²-8=0
2(x+5)²+4(y+1)²=8
divide by 8
das is elipse (becase it is plus)
gropu x's and y's and solve
remember completeing square? do tat for x's and y's
so
(2x²-16x)+(-4y²+48y)-120=0
2(x²-8x)-4(y²-12y)-120=0
2(x²-8x+16-16)-4(y²-12y+36-36)-120=0
2((x-4)²-16)-4((y-6)²-36)-120=0
2(x-4)²-32-4(y-6)²+144-120=0
2(x-4)²-4(y-6)²=8
divide both sides by 8
das be hyperbola
2.
(2x²+20x)+(4y²+8y)+46=0
2(x²+10x)+4(y²+2y)+46=0
2(x²+10x+25-25)+4(y²+2y+1-1)+46=0
2((x+5)²-25)+4((y+1)²-1)+46=0
2(x+5)²-50+4(y+1)²-4+46=0
2(x+5)²+4(y+1)²-8=0
2(x+5)²+4(y+1)²=8
divide by 8
das is elipse (becase it is plus)
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Answer:
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Step-by-step explanation:
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by evaluating the list it will give the answer that the both the samples most want to wear mascara the least want to wear lipstick.
Answer:
b) 24
Step-by-step explanation:
We solve building the Venn's diagram of these sets.
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So the correct answer is:
b) 24