Answer:
19cm
Step-by-step explanation:
An equilateral triangle is a triangle where the length of the 3 sides are the same.
the perimeter is the sum of the 3 sides
for example, if the length of the side of the an equilateral triangle is 5, the perimeter is 5 x 3 = 15
let x = unknown length of side
length after increase = x + 5
(x + 5) x 3 = 72
divide both sides of the equation by 3
x + 5 = 24
subtract 5 from both sides of the equation
x = 24 - 5 = 19cm
Answer:
yes
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
I don't know how to explain it but
10/2=5 (Driver A)
20/2= 10 (Driver B)
Sorry if it's not right
Answer:
(4 - 
)(16 + 4 + 
)
Step-by-step explanation:
64 - 
← is a difference of cubes and factors in general as
a³ - b³ = (a - b)(a² + ab + b²), thus
64 -
= 4³ - ( )³
= (4 - )(4² + 4 + ( )² )
= (4 - )(16 + 4 + )
The answer is 81, i hope this helped
