Answer:
Let l be length and w be the width
l = 2w+12
Area = (2w+12)*w = 224
2w^2 + 12w - 224 = 0
w^2 + 6w - 112 = 0
using quadratic formula
w=[ -6 +- {36- 4*1*(-112)}^0.5]/2*1
w = [-6 +- {484}^0.5]/2
w = [-6 +- {22}]/2
w = 16/2 or -28/2
w = either 8 or -14
Width can not be a negative number
wI’d think= 8 ft
length = 2*8+12 = 28 ft
Step-by-step explanation:
Answer:
-675/15
Step-by-step explanation:
The problem isn't even complete
Yes...there is truth to what ur classmate is saying.
first of all, to find the average of something, u add up all the numbers in ur data, and divide by how many numbers there are.
the midpoint formula : ((x1 + x2)/2 , (y1 + y2)/2)
so lets say ur points are (2,4) and (4,6)
so ur going to add ur x terms (2 + 4)....then divide by 2 (because there are 2 numbers)...so ur basically taking the average of ur two x terms.
you do the same with the y terms.
midpoint is : ((2 + 4)/2 , (4 + 6)/2) = (6/2 , 10,2) = (3,5)
The correct answer would be number 3 only because you are taking away when you have a negative number. SO u are taking away 3 gallons of gas.
Hope this helped!
You can find the area of this figure by finding the area of the square and then the area of the triangle. Once you find these 2 areas then add them together.
For the area of the square:
A= b x h
A = 4 cm x 6 cm
A = 24 cm²
For the area of the triangle:
A = b x h/2
A = 3 cm x 6 cm/2
A = 9 cm²
Total area = 24 cm² + 9cm²
Total area = 33 cm²
