Answer:
x=1 -/+ (root 13)
Step-by-step explanation:
Answer:
-8a - 7b - 7c
Step-by-step explanation:
-8a - 2b - 10c - (5b - 3c)
Negate 5b and -3c
-8a - 2b - 10c - 5b + 3c = -8a - 7b - 7c
Answer:


Step-by-step explanation:
Given
The translated triangles
Required
Find x and y
We have:


means:

Open bracket

Collect like terms


Divide by 6

means

Open bracket

Collect like terms


Divide by 2

Answer:
y=2x-14
Step-by-step explanation:
Gradient as m(for 1st line m1 and m2 for 2nd line)
m1/m2=-1
m1=(-1)*(-2)=2
y-(-2)/x-6=2
y+2/x-6=2
y+2=2x-12
y=2x-14
B. 5 cm, 6 cm, 7 cm . because the sum of two sides should be greater then the 3rd side