Answer:
A. 15
B. 9.6
Step-by-step explanation:
A. 6*25=x*10
150=10x
15=x (divide 10 from both sides)
B. 5*y=8*6
5y=48
y=9.6 (divide 5 from both sides)
Your answer is B) 12y = 4
You can find this by first rearranging the equation x + 3y = -2 to the form ‘x =‘:
x = -2 - 3y.
Then you can substitute this into the second equation, 2x - 6y = -8, and expand and solve:
2(-2 - 3y) - 6y = -8
-4 - 6y - 6y = -8
-12y = -4
Now because we know that -12y = -4, this is equivalent to 12y = 4, which is option B.
I hope this helps! Let me know if you have any questions :)
Answer:
<u>The standard form is:</u>
- (x - h)² + (y - k)² = r², where (h, k) is the center, r is the radius
<u>Convert the given into standard form by completing square:</u>
- x² - 4x + y² + 6y = 12
- x² - 4x + 4 + y² + 6y + 9 = 12 + 4 + 9
- (x - 2)² + (y + 3)² = 25
- (x - 2)² + (y + 3)² = 5²
- The standard form is above.
- The center is (h, k) = (2, -3)
- The radius is r = 5
You would multiply 10 and 15 then divide by 2
it is 3.742, 3.742, 14.142
