Answer:
Step-by-step explanation:
y^2 -x^2=
y^2=9^2=81
x^2=2^2=4
81-4=77
Answer:
12.8 x 32 = 409.6
Step-by-step explanation: Please brainliest if correct!
Sry but I need more information to answer the question. So so sry!
Answer:
-4
Step-by-step explanation:
Let's put this in math notation. We can call the number x:
9x+4=8x
Subtract 8x from both sides:
x+4=0
Subtract 4 from both sides:
x=-4