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sesenic [268]
3 years ago
12

Simplify the expression\(\frac{2x^{-1}y}{x^3z}\) for \(x=2\), \(y=8\), and \(z=-1\).

Mathematics
2 answers:
adelina 88 [10]3 years ago
8 0

2 <em>x</em> ⁻¹ <em>y</em> / (<em>x</em> ³ <em>z</em>) = 2 <em>y</em> / (<em>x</em> ⁴ <em>z</em>)

… = 2 × 8 / (2⁴ × (-1))

… = 16 / (-16)

… = -1

monitta3 years ago
5 0

Step-by-step explanation:

2 x ⁻¹ y / (x ³ z) = 2 y / (x ⁴ z)

… = 2 × 8 / (2⁴ × (-1))

… = 16 / (-16)

… = -1  

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B

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6 0
3 years ago
Someone please help me ✨
DedPeter [7]

Okay, so keeping mind that the equation for area is A = L x W, look at the measurements you already have. 5.5 x 10^5 is the length, and 4.2 x 10^4 is the width. Switch them into full form and use a calculator to multiply the two for the area in meters.

550000 x 42000 = 23100000000, which in scientific form is 2.31 × 10^10. So that's answer one.

For the second, in kilometers, just take the full measurement you already have, 23100000000 m, transfer it into kilometers, 23100000 km, and then find its scientific notation, 2.31 × 10^7. That's answer two.

To answer the last question for which is more suitable, just consider what number you'd prefer to look at: a bigger number or a smaller one. Since the kilometer measurement number is smaller, its correct.

Summarily, the answers are 2.31 × 10^10, 2.31 × 10^7, and square kilometers, in that order.

6 0
3 years ago
Cual es el denominador de 7/8
mash [69]

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Step-by-step explanation:

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3 years ago
PLZZ help me with this I really need your help
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