Brian wants to put this picture in the school newspaper in a space that is 5 inches tall. if he enlarges the picture proportionally so that it is 5 inches tall, how many square inches will it cover in the paper? (picture- height=2 1/2 length=1 1/4)

The enlarged picture will cover 12.5 square inches in the paper.

Step-by-step explanation:

For the original picture, height is inches and length is inches.

The height of the enlarged picture is 5 inches.

Suppose, the length of the enlarged picture is   inches.

As he enlarges the picture proportionally, so the equation according to the ratio of height and length will be.......

Thus, the length of the enlarged picture is 2.5 inches.

So, the area of the enlarged picture

your answer is d 2,500

step-by-step explanation:

since your problem is x^4 = 81, what you have to undeo is the "to the fourth power" part.

the inverse (opposite operation) of "to the fourth power" is "to the fourth root".

  (x^4) ^ ¼   = 81 ^ ¼  

  81 = 3^4     so (3 ^ 4) ^ ¼   =   3 ^ 1   = 3

by hand: (3 ^ 4) ^ ¼   =   3 ^ (4 x ¼) = 3 ^ 1   = 3   (when you take a power to a power, multiply the exponents.)

or, do it by calculator. one way of finding the fourth root is to use ^ (1/4)

step-by-step explanation: