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irinina [24]
3 years ago
10

Factorise 18u²-50y completely.​

Mathematics
1 answer:
Rufina [12.5K]3 years ago
6 0

Answer:

2(3u  + 5 \sqrt{y} )(3u - 5 \sqrt{y} )

Step-by-step explanation:

18 {u}^{2}  - 50y \\  \\  = 2[9 {u}^{2}  - 25y]  \\  \\  = 2[(3 {u})^{2}  - (5 \sqrt{y} )^{2} ]   \\  \\  = 2(3u  + 5 \sqrt{y} )(3u - 5 \sqrt{y} )

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oksano4ka [1.4K]

Answer:

A) 0.50x +300 < 650, where x < 700

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Mum bought a litre of orange juice. She filled 5 glasses and had 1/5 of a litre left. How much was in each glass?
avanturin [10]
1/5 of a litre is 0.2 litres
1 litre minus 0.2 litres is 0.8 litres so
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7 0
3 years ago
An investment banker deposited $50,000 in an account earning a nominal 6% per year compounded continuously. How much was in the
Orlov [11]

Answer:

The amount in the account at the end of three years will be $59,861.

Step-by-step explanation:

The formula to compute the amount at the end of <em>t</em> years, compounded continuously is:

A=P\times e^{t\times i}

Here,

A = Amount at the end

P = Principal amount

i = interest rate

t = number of years.

It is provided that:

P = $50,000

i = 6%

t = 3 years

Compute the amount in the account at the end of three years as follows:

A=P\times e^{t\times i}

   =50000\times e^{(3\times 0.06)}\\=50000\times 1.19722\\=59861

Thus, the amount in the account at the end of three years will be $59,861.

5 0
4 years ago
Simplify this expression.<br><br> (1-3k) + (2 + 2.5k)
Crank

(1 - 3k) + (2 + 2.5k)

= 1 - 3k + 2 + 2.5k

= (1 + 2) + ( - 3k + 2.5k)

= 3  + ( - 0.5k)

= 3 - 0.5k

7 0
3 years ago
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