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Nezavi [6.7K]
2 years ago
9

Find all numbers whose absolute value is 8.

Mathematics
1 answer:
Zepler [3.9K]2 years ago
7 0

Answer:

<h2>8 or -8</h2>

Step-by-step explanation:

The absolute value of number a:

|a| = a for a ≥ 0

|a| = -a for a < 0

|a| = 8 ⇔ a = 8 or a = -8

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Ms. burke earns $32,000 per year and plans to buy a house. use the banker's rule to determine her maximum allowable mortgage.
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The perimeter of parallelogram ABCD is equal to 10 cm. Find the length of diagonal BD if you know that the perimeter of △ABD is
Olin [163]
Perimeter of Parallelogram ABCD: Pp=10 cm
BD=?
Perimeter of triangle ABD: Pt=8 cm

Parallelogram ABCD:
AB=CD=L1
BC=AD=L2
Pp=2(L1+L2)
10 cm=2(L1+L2)
Dividing by 2 both sides of the equation:
(10 cm)/2=2(L1+L2)/2
5 cm=L1+L2
L1+L2=5 cm

Triangle ABD
Pt=AB+BD+AD
8 cm=L1+BD+L2
8 cm=BD+L1+L2
But L1+L2=5 cm, then:
8 cm=BD+5 cm
Solving for BD:
8 cm-5 cm=BD+5 cm+ 5 cm
3 cm=BD
BD=3 cm

Answer: The length of the diagonal BD is 3 cm
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I think it's 5(x+2y-3)

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Step-by-step explanation:

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