You will need 82 1/4 1/2 tiles and 165 1/4 tiles
C^2-3cd-6cd+18d^2
=c(c-3d) -6d(c-3d)
=(c-3d) (c-6d)
Answer:
a=3.6, v=1.25 and r=25%
Step-by-step explanation:
The given exponential function is
We compare to the form:
We have a=3.6, b=1.25
The r is the percentage of increase or decrease.
We realized there is a 25% increase because
Hence
Ok
2x + y - z = 7
-2y +3z = -15
x + 2y - 5z = 17
combine 2nd 3rd
x - 2z = 2
x = 2z + 2
double first statement
4x + 2y - 2z = 14
combine with second statement
4x + z = -1
substitute 2z + 2 for x
8z + 8 + z = -1
combine like terms
9z + 8 = -1
sub 8 from both sides
9z = -9
divide both sides by 9
z = -1
substitute -1 for z in second statement
-2y - 3 = -15
add 3 to both sides
-2y = -12
divide both sides by -2
y = 6
substitute -1 for z into the fifth statement
x = -2 + 2
x = 0
So, add the numbers together to get the total. Then #green/#total x 100 will give you the percentage.
Please let me know if you need additional clarification.
