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Harman [31]
3 years ago
10

Factorise fully 6ac + 10ac​

Mathematics
1 answer:
ikadub [295]3 years ago
4 0

Step-by-step explanation:

6ac+10ac

2ac(6ac+10ac)

2ac(3+5)

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The price of a computer component is decreasing at a rate of 15​% per year. State whether this decrease is linear or exponential
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Answer:

Since the price is given by an exponential function, the decline in price is exponential.

The component will cost $36.8475 in three years.

Step-by-step explanation:

The equation for the price of a component has the following format:

P(t) = P(0)(1-r)^{t}

In which P(t) is the price after t years, P(0) is the initial price, and r is the rate that the price decreases.

Since the price is given by an exponential function, the decline in price is exponential.

The price of a computer component is decreasing at a rate of 15​% per year.

This means that r = 0.15

Component costs ​$60 ​today

So P(0) = 60. Then

P(t) = P(0)(1-r)^{t}

P(t) = 60(1-0.15)^{t}

P(t) = 60(0.85)^{t}

What will it cost in three​ years?

This is P(3).

P(t) = 60(0.85)^{t}

P(3) = 60(0.85)^{3} = 36.8475

The component will cost $36.8475 in three years.

6 0
3 years ago
There is a bag filled with 4 blue and 5 red marbles.
gavmur [86]

1) first pick red 5/9 blue 4/9


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and first pick blue 4/9 x sec pick red 5/8 = 20/72

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