tuckerjcaldwell tuckerjcaldwell

25-04-2017
Mathematics

contestada

If the perimeter is 22 inches and the area is 28 square inches. What are the dimensions.

Respuesta :

25-04-2017

P=2x+2y

P=2(x+y)

y=(P/2)-x

A=xy and using y from above we get:

A=(Px/2)-x^2 since A=28 and P=22

28=(22x/2)-x^2

28=11x-x^2

x^2-11x+28=0

(x-7)(x-4)

So the dimensions are 7 inches by 4 inches

Answer Link

Otras preguntas

Can SOMEONE HELP ASAP

For every even positive integer m, f (m) represents the product of all even integers from 2 to m, inclusive. for example, f (12) = 2 × 4 × 6 × 8 × 10 × 12. what

A card is drawn from a deck of 52 cards. match the correct fraction with its corresponding probability. 1. p(a diamond or a heart): 2. p(a club or an ace):

PLEASE ANSWER CORRECTLY AND QUICKLY!~ Johnny wants to know how many students in his school enjoy watching science programs on TV. He poses this question to all

geometry b unit 8 lesson 2 answers dose anyone have them?!

Which sentence contains a nonrestrictive clause? Be sure to watch that movie I gave you. The man who drives our bus is ill. Take a left after that house with th

Would you expected similar levels or different levels of heterozygosity for y-linked vs. mitochondrial dna for sites free of selection? explain. g

Plzz helpppp meee thanksss Is this correct??

Which of the following options have the same value as 5% 35? choose 2 answers A. 5 ⋅ 35 B. 5/100 ⋅ 35 C. 0.5 ⋅ 0.35 D. 0.05 ⋅ 35 E. 5/10 ⋅ 35

F represents the gene for brown coat color and f represents the gene for white coat color. in the cross ff x ff all the offspring have a brown coat. which genet