Answer: the answer would be To make sure they remain effective.
Step-by-step explanation:
It wouldn't be to make sure they are up to code because fire extinguishers do not use code, code is used in electronics. For the second option and the last option it would not be this because they could be trained in a practice instead of using the real thing.
Answer:
Regular: C & E
Irregular: A & B
Not a polygon: F & D
Step-by-step explanation:
A polygon is a close sided shape with no curves. Since F and D have curves they are not polygons. Regular polygons have side lengths which are all equal to each other. C and E are regular polygons. Irregular polygons are polygons whose sides have different values from each other. A and B are irregular.
Answer:
y = - 
Step-by-step explanation:
Given

The denominator of the expression cannot be zero as this would make it undefined. Equating the denominator to zero and solving gives the value that y cannot be, that is
4y + 2 = 0 ( subtract 2 from both sides )
4y = - 2 ( divide both sides by 4 )
y =
= -
← excluded value
Answer: 1.5s+20
Step-by-step explanation:
100, 3/250 because 10x10 is 100 and 0.012 converted into fraction is 3/250