(05.01)a poster is shown below: a rectangle is shown. the length of the rectangle is labeled 12 feet. the width of the rectangle is labeled 3 feet. what are the dimensions if the poster is enlarged by a factor of five over two ? 7.5 ft by 30 ft 15 ft by 60 ft 1.5 ft by 6 ft 15 ft by 6 ft

The correct answer is the first option: 7.5 ft by 30 ft.

Step-by-step explanation:

If a rectangle is enlarged by a certain factor, that means that its height and width are both enlarged by such a factor. The new dimensions of the rectangle are obtained by multiplying the old dimensions by the enlarging factor, therefor we can compute the new dimensions as:

Where is the new width, is the old width, is the new height, is the old height, and is the enlarging factor.

From the above we can finally get that:

Option A) 7.5 ft by 30 ft

Step-by-step explanation:

We are given the following information:

Dimension of rectangle:

Length = 12 feet

Width = 3 feet

The poster is enlarged by a factor of

After enlargement, we can write

The dimension of poster is 7.5 feet by 30 feet

Option A) 7.5 ft by 30 ft

huh? im pretty sure it is in 199

step-by-step explanation:

hello from mrbilldoesmath!

answer:

x - 3

discussion:

x^2 - 9 = (x-3) (x+3)   so

(x^2-9)/ (x + 3) = x-3

you,

mrb