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ziro4ka [17]
4 years ago
9

19. A county government says that a safe level of chlorine in a hot tub is within 1.75 ppm of 3.25 ppm.

Mathematics
1 answer:
RideAnS [48]4 years ago
7 0

19. The chlorine value must be within 1.75 ppm, which means that the chlorine must be +/- 1.75 ppm from 3.25 ppm. This gives us a range of 1.5 to 5.

a. 1.5 ≤ | x | ≥ 5

The chlorine, represented by x, in ppm, must be equal to or between those two values.

b. He should add more chlorine because 1.0 ppm is less than 1.5 ppm, so it is not in the range for the safe level of chlorine.

Hope this helps!! :)

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I’ll give brainliest pls help
andrew11 [14]

Answer:

The slopes of WX and XZ

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Mathematically, we can only have a rectangle if there are four right angles with one right angle each at the edges of the rectangle

So, by having the slope of the sides forming the width and that which forms the length, we can deduce if what we have is rectangle given that the slopes will yield a perpendicular product

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3 years ago
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6 0
4 years ago
30 POINTS! Answer These Algebra 1 Questions ASAP!
MAXImum [283]
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6 0
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Effectus [21]
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