4|a| + 8 - a, if a = -2
What we're doing here is plugging in the given value of a for every instance of a in the expression.
4|-2| + 8 - (-2)
---The absolute value of a number is its distance from 0. -2 is 2 units away from 0, so the absolute value of -2 is 2. And, remember two negatives make a positive!
4(2) + 8 + 2
8 + 8 + 2
16 + 2
18
Hope this helps!
they are both increasing at the same rate
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Answer:
16
Step-by-step explanation In mathematics the difference is the result of subtracting one number from another, and represents the operation of removing objects from a collection:
Answer:
the 3rd one
Step-by-step explanation:
The triangle is a right triangle so use the Pythagorean theorem.
a² + b² = c²
15² + b² = 17²
225 + b² = 289
b² = 64
b = √64
b = 8
Hope this helps :)