Answer:
2-sqrt14/2, 2+sqrt13/2.
Step-by-step explanation:
What you do is you have to do the quadratic equation like it says in the problem.
x= −b± sqrtb^2 −4ac
/2a
.
a=-2, b=4, c=5.
x=-4±sqrt(4)^2-4(-2)(5)/2(-2).
x=-4±sqrt16+40/-4.
x=-4±2sqrt14/-2.
2-sqrt14/2, 2+sqrt13/2. is your answer once you have done everything.
Divide 560 by 23, 23 goes into 560 24.347 times.
Answer:
86.67 %
Step-by-step explanation:
8 were penalties, so 60-8=52 were not penalties.
so 52 out of 60 were not penalties.
52/60 * 100% = 86.67 %
Earthquakes and fault lines
