He length of a rectangle is 7 ft more than twice the width, and the area of the rectangle is 99 ft2 . find the dimensions of the rectangle.

Question

01-12-2017
Mathematics

contestada

He length of a rectangle is 7 ft more than twice the width, and the area of the rectangle is 99 ft2 . find the dimensions of the rectangle.

Respuesta :

Otras preguntas

A child throws a ball up in the air to a height of 3.5 m and catches it at the same point from which he threw it. The ball is in the air for a total of 1.7 s. W

A hydrogen atom has one proton, two neutrons, and no electrons. Is this atom neutrally charged? Explain your answer.

Waves that move matter back and forth are called a.transverse waves b.longitudinal wave c. Medium wave

If the edges of a cube add up to 4 feet in length, what is the volume of the cube?

What does it mean to say that momentum is conserved?

What is "la pista de pogo" mean in Spanish

All of the following were provisions of the Constitution as originally ratified EXCEPT (A) indirect election of senators (B) the counting of three fifths of sla

A man walks 15 blocks to work every morning at a rate of 2 miles per hour. If there are 20 blocks in a mile, how long does it take him to walk to work?

The mean distance from Saturn to the sun is 9 times greater than the mean distance from Earth to the sun. How long is a Saturn year?

kritter1 kritter1 · Answer 1 · 2017-12-01T12:53:56+01:00

kritter1 kritter1

01-12-2017

Let the width be x

Length= x+7

Area=lw

99=(x+7)(x)
99=x²+7x
0=x²+7x-99
x= -14.04 or x=7.04

Since a length cannot be negative, the width is 7.04 ft and the length (7.04+7)=14.07 ft

Hope I helped :)

Answer Link