R is a point which is 13 units from the origin if its x co-ordinates is 12 find the possible values of the y co-ordinate

±5

Step-by-step explanation:

Apply the Pythagorean Theorem:

x^2 + 12^2 = 13^2, or

x^2 = 169 - 144 = 25

The possible y-coordinate vaues are ±√25, or ±5

answer: bearing in mind that a rectangle has a perimeter of length + length + width + width.

step-by-step explanation:

p = perimeter

l = length

x=width

p = 2l + 2x

p = 2(l+x)     < ==== perimeter of the base of the box.