The base of a triangle is 5 units greater than the height, if its area is 18cm2, what is the quadratic equation that models the
situation described and is used to find the height of the triangle?
1 answer:
base= 5+h
height= h
area= 1/2bh, so since our area us 18cm^2
therefore 18=1/2*b*h
18*2=(5+h)*h
36=5h+h^2
h^2+5h-36=0 ( for quadratic equation)
h^2+9h-4h-36=0
(h^2+9h)(-4h-36)=0
h(h+9)-4(h+9)=0
(h-4)(h+9)=0
h=4 or h= -9
You might be interested in
Answer:
Hi how are you doing today Jasmine
N^4 - 1 = (n^2 - 1)(n^2 + 1)
= (n + 1)(n - 1)(n^2 + 1)
Answer:10a-35
Step-by-step explanation:
30 because half of 30 is 60and 60 is like 100 cuz it is the whole so half of 60 is 30
It would decrease because you are multiplying by a decimal.