Question

Which equation would best help solve the following problem?



The height of a triangle is 5 m less than its base. The area of the triangle is 42 m2. Find the length of the base.




A.


42 =x(x – 5)


B.


42 =


C.


42 =x2– 5


D.


42 =

Answer 1

none

Answer 2

there is lol

Answer 3

unless you write the answers properly, none of the answers you have given

Answer 4

lol are you serious -.-

Answer 5

you're looking for the first equation you set up?

Answer 6

yes. remark that i have not used "lol" yet

Answer 7

yup

Answer 8

"best help solve"

Answer 9

yeah which equation is best for it?

Answer 10

set the base equal to x, set the height equal to x-5

Answer 11

what's the formula for the area of a triangle?

Answer 12

a=bxh?

Answer 13

wait its 1/2 haha

Answer 14

where is the 1/2

Answer 15

Kinda uber confused.

Answer 16

a could help if your remembered to put in the 1/2 before the x

Answer 17

and THAT's why it's not one of the choices. where's the 1/2?

Answer 18

:( i typed that all and my hands are hurting sorry about that haha

Answer 19

it says to find the length of the base.

Answer 20

well ha ha ha

Answer 21

solve for base by substituting b=h-5 so you only have one variable

Answer 22

thanks akhaliq best reponse :)

Answer 23

42=(1/2)(b)(b-5)