Answer:
C: 23 cm
Step-by-step explanation:
This is the answer because:
1) Area of trapezoid is: (base1 + base2)/2 x height
2) In this case, it is 14 + 8 which is 22. 22/2 is 11.
3) Now we have to do 253/11 which is 23 cm.
Hope this helps! :D
3x+4y=12
9x-2y=15
we will use elimination
multiply 3x+4y=12 by -3
-9x-12y=-36
9x-2y=15
_________ add
-14y=-21
÷-14 both sides
y=1.5
find x
3x+4 (1.5)=12
3x+6=12
-6 both sides
3x=6
÷3 both sides
x=2
x=2
y=1.5
I think you mean,
You can use the usual formula,
That in this case is,
Where I have used,
Answer:
2%
Step-by-step explanation:
It increases one, so it increases 1/50, which is 0.02
2%
(-0.2,1.2)
substitute 3x+2 for y and set them equal to eachother then plug in x for y