The answer is number 1. Because 12/10 =20/18 is a true statement. None of the others are true
Answer:
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Step-by-step explanation:
Answer:
A good rule is to change 10 to 15 percent of the water each week. If your tank is heavily stocked, bump that up to 20 percent each week. A lightly stocked aquarium can maybe get by for two to four weeks, but this should be the maximum length of time between water changes.
Step-by-step explanation:
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Answer: 5
Step-by-step explanation:
use formula a^2 + b^2 = c^2
a^2 + 12^2 = 13^2
a^2 + 144 = 169
- 144 -144
a^2 = 25
sqrt sqrt
a = sqrt (25)
a = 5
Answer:
The vertex of the quadratic function is:
Step-by-step explanation:
Given the function
As the vertex of the form 
is defined as:
As the quadratic function of parabola params are
so
Putting to determine 
Therefore, the vertex of the quadratic function is:
