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SpyIntel [72]
2 years ago
11

Factorise : 16x^2 +72xy + 81y^2 -12x +27y

Mathematics
1 answer:
never [62]2 years ago
5 0
Hello!!

It will be the same since there is no common factor. You just need to arrange in order. 

6x^2 + 72xy - 12x + 81y^2 + 27y

Good luck :)
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A faucet is leaking water at a rate of 2.5 cups per hour. How many cups of water will leak in 8 hours? A. 3.2
VikaD [51]

Answer:

20

Step-by-step explanation:

In 8 hours, it will leak 2.5 * 8 = 20 cups of water.

3 0
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On some days,Melvin commutes 3.5 hours per day to the city for business meetings.Last week he commuted for a total of 14 hours.H
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Total hours ÷ hour per day

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He commuted 4 days for the city.


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2 years ago
There are exactly π radians in a semicircle. There are exactly π radians in a full circle. There are approximately radians in a
Allisa [31]

pi radians in a semicircle (half circle)

2pi radians in a full circle.

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8 0
2 years ago
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A rectangular prism has a volume of 170 cubic centimeters. The length of the prism is 5 centimeters, and the height of the prism
luda_lava [24]

Answer:

The width of the prism is 2 cm

Step-by-step explanation:

The given parameters are;

The volume of the prism = 170 cm³

The length of the prism = 5 cm

The height of the prism = 17 cm

The volume of the prism is given by the  relationship v = Length, l × Height, h × Width, w

Therefore;

The volume of the prism = 5 cm × 17 cm × w = 170 cm³

Which gives;

w = 170 cm³/(5 cm × 17 cm) = 170 cm³/(85 cm) = 2 cm

∴ The width of the prism = 2 cm.

7 0
2 years ago
A multiple choice question has 18 possible​ answers, only one of which is correct. Is it​ "significant" to answer a question cor
yan [13]

Answer:

It is not ''significant''

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Let's call the event

A : ''Answer a question correctly if a random guess is made''

Now we calculate the probability for the event A

P(A)=\frac{cases where A occurs}{total cases}

In the exercise A occurs in only one way and the total cases are the number of possible answers

Total cases = 18

P(A)=\frac{1}{18} =0.0555555

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P(A)=0.0555555

⇒A it is not a ''significant'' event

8 0
2 years ago
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