Answer:y=-1/2
Step-by-step explanation:
125=(1/25)^(y-1)
5^3=(5^(-2))^(y-1)
5^3=5^(-2(y-1))
The same base eliminate each other we then have
3=-2(y-1)
3=-2y+2
Collect like terms
2y=2-3
2y=-1
Divide both sides by 2
2y/2=-1/2
y=-1/2
Answer:
c = km
Step-by-step explanation:
Here's the required formula to find the missing side of triangle by pythagoras theorem :
- a = 20 km
- b = 21 km
- c = ?
Substituting all the given values in the formula to find the third side of triangle :
Hence, the length of missing side of triangle is 29 km.
Answer:
Step-by-step explanation:
Answer:
18 because 6 times 2 is twelve and 9 times 2 is 18... only if its direcrly proportional which it is
Step-by-step explanation:
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