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Natasha2012 [34]
3 years ago
7

Help me pls help ..........

Mathematics
1 answer:
harkovskaia [24]3 years ago
7 0

Answer:

4

Step-by-step explanation:

(x)^2+(1/x)^2=18

(x-1/x)^2+2x.1/x=18

(x-1/x)^2+2=18

(x-1/x)^2=16

(x-1/x)^2=4^2

x-1/x=4

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A store has clearance items that have been marked down by 60% they having a sale, advertising an additional 30% off clearance it
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The original price is 100% of the price. If the price is marked 60% off, then you pay 40% of the original price.

An item costs x dollars.

With the 60% off discount, it now costs 40% of x, or 0.4x.

Now you apply a 30% discount.

For the second discount, consider the price 0.4x to be the new original price. If the price is now discounted 30%, you will pay 70% of the new original price.

Start with 0.4x.

Now calculate 70% of 0.4x.

70% of 0.4x = 0.70 * 0.4x = 0.28x

After applying the 60% discount and the 30% discount, the item that originally cost x now costs 0.28x. 0.28x is the same as 28% of x. The amount you pay is 28% of the original price.

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3 years ago
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Step-by-step explanation:

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3 years ago
Help please anyone ASAP !!!?!?!
mr Goodwill [35]

Answer:

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Step-by-step explanation:

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2 years ago
The drama club is selling short-sleeved shirts for $5 each, and long-sleeved shirts for $10 each. They hope to sell all of the s
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8 0
3 years ago
In Canada, households spent an average of $80.63 CDN monthly for high-speed broadband access.24 Assume that the standard deviati
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Answer:

Step-by-step explanation:

Assuming a normal distribution for the amount spent by Canadian households for high-speed broadband access, the formula for normal distribution is expressed as

z = (x - u)/s

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s = standard deviation

From the information given,

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s = $27.32 CDN

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Looking at the normal distribution table, the corresponding z score is 0.57142

P(x greater than 85) = 1 - 0.57142 = 0.43

3 0
3 years ago
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