Step-by-step explanation:
Given
c² = a² + b²
Making a² subject then
a² = c² - b²
Hope it will help :)
Answer:
dff
Step-by-step explanation:
saf
Answer:
12 bikes
9 tricycles
Step-by-step explanation:
x+y=21
2x+3y=51
x=-y+21
2(-y+21)+3y=51
-2y+42+3y=51
y+42=51
y=9
x=12
Answer:
C
Step-by-step explanation:
BC its backwards den the 1+3x
Answer:
-2
Step-by-step explanation:
Each term is being multiplied by -2.
9(-2) → -18
-18(-2) → 36
