3r^2-8r-28=0
Solve with quadratic formula
2 answers:
R = 8 +- sqrt(64-4*3*-28) / 6
r = 8 +- sqrt(64--336) / 6
r = 8 +- sqrt(400) / 6
r = (8 +- 20) / 6
r = 14/3 or -2
(8 plus of minus radical 64 + 216
divided by
6
(8 + or - 16.73320053)/6
You might be interested in
Answer:
the answer your looking for is a pyramid
Step-by-step explanation:
i know but yes i need to know it
Answer:
x = 6
Step-by-step explanation:
A = 1/2bh
36 = 1/2(12)(x)
x = 6
