The formula for the discriminant is the square root of b^2 - 4ac
8x^2+18x-5= 0
a = 8, b=18, c= -5
Square root of 324 +160
Square root of 484 = 22 The discriminant is 22
Answer:
X = 108.
Step-by-step explanation:
Heights are equal, So equation will be,

So, solving the eq.
Subtract 4 from both sides ,

Divide 3 to both sides,

Squaring both sides,

Add 8 to both sides,

18 cm doing the same thing rn
Answer
≈75.36ft
Step-by-step explanation:
C=2πr
C=24π
C≈75.3982
Or, if you substitute π with 3.14 instead:
C=2(3.14)r
C=6.28(12)
C=75.36
Hope this helps! Tell me if you have any questions!