Answer:
I'm sorry I don't know how to put in words of how to solve but the answer would be
ZY = 3 ft
XY= 7.42 ft
Answer:
Step-by-step explanation:
8/5 pi divide by 2 pi = 16pi
4/5 = 16 pi
4/5 multiply by 16 pi = area
64/5 pi
Answer:
0.12
Step-by-step explanation:
Answer:
9
Step-by-step explanation:
if x= 4; 2x+1
2(4) + 1
8 + 1
9
Answer:
x=2, y=-3
Step-by-step explanation:
This type of problems is called a system of equations, or simultaneous equations.
When solving simultaneous equations, you need to first make sure you have two unknown terms of the same number but different signs - this is so one unknown cancels out because we can only solve when there's one unknown. We already have this ('2y' and '-2y'). Now we just add the 'x's, the 'y's and the numbers:
2x+2y=-2
3x-2y=12
(2x+3x)+(2y-2y)=(-2+12)
5x=10
x=2
Now that we know the value of x, use it to find y:
2x+2y=-2
2(2)+2y=-2
4+2y=-2
2y=-6
y=-3
