Answer:
6
Step-by-step explanation:
-28-6b=8
-6b=36
b=6
Answer:
which object tho
Step-by-step explanation:
Answer:
X=-9
Step-by-step explanation:
First, distribute the 2. So, it would be 2x-6+21=-3. Then, bring the -6 and 21 to the right side. It would now be 2x= -18. X would be equal to -9.
Hope this helps!
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).
Answer:
x = 9
Step-by-step explanation:
Corresponding sides are in proportion, that is
= 
( cross- multiply )
8x = 72 ( divide both sides by 8 )
x = 9
