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Ludmilka [50]
3 years ago
8

Expand and simplify (n-2)(3n+7) + 2n(2n+3)

Mathematics
1 answer:
KonstantinChe [14]3 years ago
6 0
3n^2+7n-6n-14+4n^2+6n= 7n^2+7n-14

Hope that helps and best of wishes!
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Peaches are being sold for $2 per pound.The customer created a model to represent the total cost of peaches bought. If x represe
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Answer:B)The values of both x and y will be real numbers greater than or equal to 0.

Step-by-step explanation:

7 0
3 years ago
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“The sum of 6 consecutive integers is 519” what is the third number in this sequence?
Rashid [163]
Let x be the first integer, then
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x + (x+1) + (x+2) + (x+3) + (x+4) + (x+5) = 519
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6x + 15 = 519
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x = 84
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Our sequence is
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7 0
3 years ago
Bashir works in a weather station and has launched a weather ballon. The height of the baloon is 4 kilometers and it is 1 kilome
andrew-mc [135]

<u><em>Answer:</em></u>

(c) 4.1 km

<u><em>Explanation:</em></u>

We are given that the height of the balloon is 4 km and that it is 1 km away from the station.

Setting up the diagram that describes the given scenario, we would end up with a right-angled triangle as the one shown in the attached image

<u>where:</u>

height of the balloon = 4 km represents one side of the triangle

distance between the base of the balloon and the station = 1 km represents the other side

distance between the balloon and the station is the length we want to find and it represents the hypotenuse of the triangle.

<u>To get the length of the hypotenuse, we will use the Pythagorean theorem</u>

hypotenuse = +\sqrt{(side1)^2 + (side2)^2}

<u>Substitute with the givens:</u>

hypotenuse = +\sqrt{(4)^2 + (1)^2} = √17 ≈ 4.1 km

Hope this helps :)


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false

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Sometimes..... 
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