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victus00 [196]
3 years ago
5

A rectangle has a width of 3 units and a length of 4 units. Nancy needs to increase both the length and the width of the rectang

le by 2 units.
Image_8672

Which statement describes how the area of the rectangle will change?
Mathematics
1 answer:
yarga [219]3 years ago
3 0

Step-by-step explanation:

The length of a rectangle, l = 3 units

The breadth of a rectangle, b = 4 units

Nancy needs to increase both the length and the width of the rectangle by 2 units.

The area of a rectangle is given by

A = length(l) × breadth(b)

Here,

A = 3 × 4

= 12 unit²

If both length and width of the rectangle increase by 2 units,

New length = (4+2) = 6 units

New width = (3+2) = 5 units

New area = 6 × 5 = 30 unit²

Hence, new area becomes 30 unit².

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Answer:

Angle A = 102°

Angle B = 51°

Angle C = 27°

Step-by-step explanation:

angle A = 2b

angle B = b

angle C = 1/3 b + 10

Angle A + Angle B + Angle C = 180

2b + b + 1/3 b + 10 = 180

3 1/3 b + 10 = 180

10/3 b = 170

b = 51

a = 2b = 102

c = 1/3 b + 10 = 1/3 (51) + 10 = 17 + 10 = 27

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Sphinxa [80]

Answer:

Step-by-step explanation:

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Consider the function f(x)= (x+4)(x-2) what is the equation of the axis of symmetry
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if we zero out f(x), namely make y = 0, we can get the roots or x-intercepts for this quadratic equation

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now, the equation is in x-terms, meaning is a vertically opening parabola, so the axis of symmetry will be x = something, a vertical line.

well, we have two x-intercepts, one at -4 and another at 2, and the vertex is right half-way between those guys

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so the vertex is at x=-1, namely the axis of symmetry is x = -1.

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Answer:

False.

Step-by-step explanation:

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Hope this helps!

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