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Aleks04 [339]
3 years ago
11

Help I’m timed!!! which expression can be used to convert 80 US dollars (USD) to Australian dollars (AUD)?

Mathematics
2 answers:
Brut [27]3 years ago
8 0
The Answer is the first one or a
Sunny_sXe [5.5K]3 years ago
7 0

Answer:

A

Step-by-step explanation:

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3 years ago
Solve g(-1)=x^2-5x+2
olga55 [171]

Answer:

x = 5/2 + sqrt(17)/2 or x = 5/2 - sqrt(17)/2

Step-by-step explanation:

Solve for x:

x^2 - 5 x + 2 = 0

Subtract 2 from both sides:

x^2 - 5 x = -2

Add 25/4 to both sides:

x^2 - 5 x + 25/4 = 17/4

Write the left hand side as a square:

(x - 5/2)^2 = 17/4

Take the square root of both sides:

x - 5/2 = sqrt(17)/2 or x - 5/2 = -sqrt(17)/2

Add 5/2 to both sides:

x = 5/2 + sqrt(17)/2 or x - 5/2 = -sqrt(17)/2

Add 5/2 to both sides:

Answer:  x = 5/2 + sqrt(17)/2 or x = 5/2 - sqrt(17)/2

5 0
3 years ago
Round 7.49 to the nearest tenth <br>​
blsea [12.9K]

Answer:

7.5

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Step-by-step explanation:

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