How can you use the lengths in a scale drawing of an object to find the object's actual area?

Find the area of the object in the scale drawing and then multiply by the reciprocal of the scale factor.
Find the area of the object in the scale drawing and then multiply by the scale factor.
Multiply each scale length by the scale factor and apply the object's area formula.
Multiply each scale length by the reciprocal of the scale factor and apply the object's area formula.

-7

step-by-step explanation:

x^2 + 18x + 74 = (x + 9)^2 - 81 + 74

= (x + 9)^2 - 7.

so q = -7.

the length of o'p' is .

step-by-step explanation:

it is given that the quadrilateral m'n'o'p' is the image of quadrilateral mnop after dilation.

the center of dilation is origin and the scale factor is 1.5.

in dilation the image and preimge are similar figures. it means the sides of image and preimage are proportional.

the scale factor is defined as

the scale factor is 1.5.

multiply both sides by op.

note: if the value of op is given, then multiply the value of op with 1.5 to get the length of side o'p'.

therefore length of o'p' is .

i dont understand the question? ?

step-by-step explanation:

the answer is d

step-by-step explanation: