The negative externalities must be present.
(-7)*(2/5 + (-3/7))
= -14/5 + 3
=1/5
Answer:
Width = 7 cm
Length = 15 cm
Step-by-step explanation:
Let width = w
Length = w + 8
Area of rectangle = 105 sq. cm
length * breadth = 105
(w + 8)*w = 105
Use distributive property
w² + 8w = 105
w² + 8w - 105 = 0
Sum = 8
Product = -105
Factors = 15 , -7 {15 +(-7) = 8 & 15*(-7) = -105}
w² - 7m + 15m - 105 = 0
w(w - 7) + 15(m - 7) = 0
(w - 7)(w + 15) = 0
Ignore w + 15= 0 as measurements will not be in negative value
w - 7 = 0
w = 7
Width = 7 cm
Length = 7 + 8 = 15 cm
Is this math? I'm sorry I don't get what formula I'm supposed to rewrite or -
Length = l = 3 m ,
Breadth = b = 4 m
Length of the Longest rod placed in
the room = length of the diagonal of the floor
= √ l² + b²
= √ 3² + 4²
= √ 9 + 16
= √ 25
= 5
I hope this helps you.
