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algol13
3 years ago
15

How do I solve 8x+5y=-20 ?

Mathematics
1 answer:
Vlad [161]3 years ago
4 0

Answer: y=-8/5x-4

Step-by-step explanation:

8x+5y=-20

-8x         -8x

5y=-8x-20

/5     /5

y=-8/5x-4

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(i3)^2(-i0)^3(3i2)^4
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The answer is 0 is this if i stands for a square root.
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3 0
3 years ago
The population of a country on January 1, 2000, is 20.7 million and on January 1, 2010, it has risen to 22.6 million. Write a fu
Triss [41]

Answer:

P(t) = 20.7e^0.0087816t

Step-by-step explanation:

Given that :

Initial population ; Jan 1, 2000 = 20.7 million

Current population ; Jan, 2010 = 22.6 million

A function of the form P(t)

Where t = time

Usingbthe exponential growth function :

P(t) = Poe^rt ;

P(t) = population at a time after the initial population figure

Po = initial population

r = growth rate

t = time in years

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Po = population in 2000 = 20.7 million

t = 10 years

22.6 = 20.7e^r * 10

22.6 = 20.7e^10r

22.6 / 20.7 = e^10r

1.0917874 = e^10r

Take the In of both sides

In(1.0917874) = 1n(e^10r)

0.0878162 = 10r

r = 0.0878162 / 10

r = 0.0087816

Hence,

P(t) = 20.7e^0.0087816t

4 0
3 years ago
What type of number is <img src="https://tex.z-dn.net/?f=%5Csqrt%7B%20%7D%207" id="TexFormula1" title="\sqrt{ } 7" alt="\sqrt{ }
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It is an irrational number.

4 0
4 years ago
Which transformation describes the photograph? Select all that apply. The panels on the right side are a translation of those on
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Answer:

  The left side is a reflection of the right side

Step-by-step explanation:

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3 0
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A shopkeeper marks:
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3 years ago
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