Area=1/2bh
h=altitude
b=legnth of base
b is 3 times h
b=3h
divide by 3
b/3=h
area=1/2bh
subsitute b/3 for h
54=1/2(b)(b/3)
multiply bothsides by 2/1
108=b(b/3)
108=(b^2)/3
multipy both sides by 3
324=b^2
square root boh sides
18=b
legnth of base=18
Answer:
a = -b + 10x + 9/ x
Step-by-step explanation:
5(2x+3)−6=ax+b
ax+b=10x+9
ax
+b+−b=10x+9+−b
ax=−b+10x+9
ax/x = -b+10x + 9 /x
hope this helpss!!
