Okay so first we see the left half is in between "| |" and that means absolute value. That means whatever number is between those lines, you make positive. Now we just plug in the numbers from the choices and see which ones apply.
|27 - 7.5| ≤ 17
|19.5| ≤ 17
19.5 ≤ 17
False. Choice A is not the answer.
|20 - 7.5| ≤ 17
|12.5| ≤ 17
12.5 ≤ 17
True. Choice B is one of the answers.
|(-9) - 7.5| ≤ 17
|-16.5| ≤ 17
16.5 ≤ 17
True. Choice C is also an answer.
The two that apply are B and C.
Hope that helps!
D. The water evaporates and the salt remains in the beaker.
When a liquid is boiled the liquid evaporates, while the minerals settle.
Answer:
Step-by-step explanation:
Answer:
d. −4−8 and −4+(−8)
Step-by-step explanation:
+ - is equivalent to -
Answer:
C. (16y + 7z)
Step-by-step explanation:
9y + 11z + 7y - 4z
1. Simplify the y's: 9y + 7y = 16y
16y + 11z - 4z
2. Simplify the x's: 11z - 4z = 7z
16y + 7z
