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Masteriza [31]
3 years ago
6

The pH scale measures how acidic or basic a substance is. Lemon juice is said to have a pH of less than 4 and greater than 1.5.

Model the normal range of pH values of lemon juice, using a compound inequality.
1.5 > x > 4
1.5 < x < 4
1.5 ≤ x ≤ 4
1.5 ≥ x ≥ 4
Mathematics
1 answer:
castortr0y [4]3 years ago
8 0

Let's say x is J because it's Lemon Juice.

It's said that the pH of J is less than 4 so: pH(J) < 4 and pH(J) is greater than 1.5 so: pH(J) > 1.5

Now we can construct:

1.5 < pH(J) \wedge pH(J) < 4

Or simply:

1.5 < pH(J) < 4

We can also write this with an interval:

pH(J)\in(1.5, 4)

Hope this helps.

r3t40

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