The sum of all integers between 3 and 11

Mathematics

2 answers:

Lena [83]4 years ago

6 0

Answer:

Step-by-step explanation:

You would add 4+5+6+7+8+9+10 to get the sum of 49.

skelet666 [1.2K]4 years ago

6 0

The correct answer would be 49 if I’m not mistaken.

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Take -4+3a2 from 7a - a2 . ?? Pls help !!

Burka [1]

Answer:

There you go mate!

Step-by-step explanation:

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3 0

3 years ago

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A flowerbed is to be 3m longer than its width.the flowerbed will have an area of 70m²

melomori [17]

ANSWER
Yes, it is a quadratic equation which is x² + 3x - 70 = 0

SOLUTION

Area = Length × Width
Let x be the Length, L = x
Length is 3 cm longer than its width, thus, W = x + 3
The Area is equal to 70m², thus, A = 70m²

In Mathematical representation,
A = L × W
70 = (x)(x + 3)
70 = x(x) + x(3)
70 = x² + 3x
0 = x² + 3x - 70

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3 years ago

A box is to be constructed with a rectangular base and a height of 5 cm. If the rectangular base must have a perimeter of 28 cm,

Svetradugi [14.3K]

Answer:

The quadratic equation that best models the volume of the box (in terms of W) is:

$70W-5W^2$