brookelee brookelee

23-01-2018
Mathematics

contestada

I️ don’t understand this

I dont understand this class=

Respuesta :

HenryLCH HenryLCH

23-01-2018

Let x cm be the height of the triangle
then the base =(3x+5)cm
(x*(3x+5))/2=69
3x^2+5x-138=0
x=6 or -23/3(rejected)
Therefore, height= 6cm, base=23cm

Answer Link

Otras preguntas

If 200 is increased by 130 percent, what is the resulting number ? PLEASE HELP ME AND SHOW WORK , THANKS !! C:

After they diluted the dark soda, it looked more like iced tea. Using the context, the word diluted means watered down drank filled up pledged

What was the significance of the 1876 election?

find three ordered pairs that satisfy the equation 4x+ 2y=8

)Conscientious objectors were often assigned to which of these capacities during World War I? fighter pilots non-combat troops merchant marine sailors workers i

is this sentence correct or is it missing a comma? You'll see the club right after the sports stadium, the big domed building.

A gerund is a _____. verb participle noun adjective

Which statement best describes Germany’s submarine campaign during World War I?

B? What resulted from the voluntary military service of thousands of Native Americans during World War I? Many Native American families moved from rural to urba

Describe a situation that could be modeled with the ratio 4:1