Answer:
The missing number is 16.
Step-by-step explanation:
The ratio between x and y is 1:4. 4 times 4 is 16. Hope this helped! :)
Answer:Yes
Step-by-step explanation:
Don’t have explanation really but I do have a pictur3 to help you understand.
I hope this helps!:)
Answer:
(-7,5)
Step-by-step explanation:
It's already in vertex for so it's a pretty staight forward solve :)
Answer:
1
Step-by-step explanation:
y2 - y1 divided by x2 - x1
-9 + 5 = -4
3 - 7 = -4
-4/-4 = 1
25(3x-y)²-16(5x+3y)²=25(9x²-6xy+y²)-16(25x²+30xy+9y²)=
=225x²-15xy+25y²-400x²-480xy-144y²=-175x²-630xy-119y²