This looks like an ellipse.
Complete the square for y: 9(y²-6y-7)=9(y²-6y+9-9-7)=9((y-3)²-16).
Rewrite the equation:
4x²+9(y-3)²-144=0; 4x²/144+9(y-3)²/144=1; x²/36+(y-3)²/16=1.
Standard equation of an ellipse is (x-h)²/a²+(y-k)²/b²=1, where (h,k) is the origin or centre.
This is the equation of an ellipse with centre (0,3), a=6 and b=4 (semimajor and semiminor axes).
47 degrees
Work:
90+43+x=180
133+x=180
-133 -133
———————
x= 47
Answer:
-3/4, -5/8, -9.2%, -0.001, 4.6%, 5%, 33%
Step-by-step explanation:
% 4.6%
Let's do the process of elimination to find our answers
% this would be in between because - 62.5% would be after -75%
% this fraction equals to a positive percentage which would be after 4 so not this one
% this number would come after -75%, -62.5%, -9.2%and before 4.6% so this would be one
% we already have the percentage so not this one
33% this number would come after 4.6% so not this one
-9.2% this would be between them because its -9 and it will be after -75% and -62.5%
