2x2−2x−12=0
Use the quadratic formula to find the solutions.
−b±√b2−4(ac)2a
Substitute the values a=2
, b=−2, and c=−12 into the quadratic formula and solve for x
.
2±√(−2)2−4⋅(2⋅−12)2⋅2
Simplify.
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x=1±52
The final answer is the combination of both solutions.
x=3,−2
Answer:
the first option, (-4, 6)
Step-by-step explanation:
for this question, we can use the substitution method. this is where we substitute the coordinates in the answer choices into the given system of inequalities or equations to determine which one is true.
1. (-4,6)
x + 4y > 12
-4 + 4(6) > 12
20 > 12 is true
now we can substitute the second inequality.
3(6) > -4 + 6
18 > 2 is true, therefore making this set of points true.
it may be helpful to substitute the rest of the values of x and y into the inequalities to verify your answers :
5 + 4(2) > 12
5 + 8 > 12
13> 12 is true
3(2) > 5 + 6
6 > 11 is not true
the rest of the answer choices are also not true.
I hope this helped you!
5t(3t+2)(t-8) is already factorized.
Answer:
41 miles a day
Step-by-step explanation:
293 - 129 = 164
164 / 4 = 41