Answer: 36
Step-by-step explanation:
The legs are given to be :
3x - 1 and -x + 27
The base = 5x + 1
One of the properties of an isosceles triangle is that two sides are equal , that is the two legs are equal. This means that
3x - 1 = - x + 27
3x + x = 27 + 1
4x = 28
x = 7
To calculate the length of the base, substitute x = 7 into the length of the base given , that is
Length of the base = 5(7) + 1
L = 35 + 1
L = 36
10 because first brackets is 0 second brackets is 10 15*0 is 0 0+10 is 10
Answer:
x = - 
Step-by-step explanation:
the equation of a circle centred at the origin is
x² + y² = r² ( r is the radius )
The radius of a unit circle is r = 1
substitute (x, -
) into the equation and solve for x
x² + (-
)² = 1²
x² +
= 1 ( subtract
from both sides )
x² = 1 -
=
( take square root of both sides )
x = ±
= ± 
since the point is in the 3rd quadrant then x < 0
x = - 
Answer:
2m² (2m)
Step-by-step explanation: