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3 years ago

K(k + 1)(k + 2) – 3k(k + 1) Need a step-by-step guide on how to factor this completely

Mathematics

1 answer:

Dimas [21]3 years ago

8 0

Answer:

Step-by-step explanation:

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

k and (k+1) are common to both terms.

k(k+1)(k+2) - 3k(k+1) = k(k+1)[(k+2) - 3] = k(k+1)(k-1)

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Rhonda bought a new laptop for $800. The laptop depreciates, or loses, 20% of its value each year. The value of the laptop at a

zhuklara [117]

As per the problem,

Rhonda bought a new laptop for $800.

The laptop depreciates, or loses, 20% of its value each year.

The value of the laptop at a later time can be found using the formula

$A=P(1-r)^t.....(1)$

Here we have

P=$800

r=20%=0.20

t=2 years

Substitute the values in equation (1) we get

$A=800(1-0.2)^2\\ \\ \Rightarrow A=800(0.8)^2\\ \\ \Rightarrow A=800*0.64\\ \\ \Rightarrow A=512\\$

The laptop be worth in two years will be $512.

6 0

3 years ago

The cylindrical container shown below can be completely filled with 24 litres of water. The base area of the container is 600 cm

Virty [35]

Answer:

40cm

Step-by-step explanation:

volume of a cylinder= πr²h

V=24litres, Area=πr²=600cm², height=?

converting litres to cm³

1litre=1000cm³

24litres= 24×1000

=24000cm³

24000=600× h

h= 24000/600

= 40cm

5 0

3 years ago

Worth 18points

svet-max [94.6K]

D.) <span>A picnic table is on sale for 40 percent off. The original price of the picnic table is x, $144.10

It is on sale for 40% so, new amount will be 60%, and x is the sale price, so in order to calculate original price, you have to multiply them

Hope this helps!</span>

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3 years ago

Jake rode his roller skated 2 1/4 miles for 3/4 of an hour. Find his skating speed in miles/hour

alisha [4.7K]

Answer:

3 mph

Step-by-step explanation:

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2 years ago

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Ede4ka [16]

Answer:

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Step-by-step explanation:

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3 years ago