9. -6xy+2xz
10. b(a-c-3d)
11. -3xy+xz-4xw
also i think that 8 is supposed to be a(10-13)
Answer:
Circumference is 12.56
Area is 6.28
Step-by-step explanation:
4×3.14=12.56
2×3.14=6.28
Hey there!
This equation is in standard form, which is
.
We are going to solve this with the quadratic equation, so we need to find the values for a, b, and c in the given equation. We can just look at it and identify the variables.
a = 3, b = 1, c = -5
Let's plug these values into the quadratic equation:
Multiply 4(3)(-5) together and multiply 2(3). Square 1.

Add 1 and 60.

This is our answer in exact form. If you need this as an approximate value, let me know and I will do that for you.
Hope this helps!
Step-by-step explanation:
the answer is the third one
hope it helps and if u need a explanaton I can help
Answer:
1 and 3
Step-by-step explanation: