<span>Inflection points are where the function changes concavity. Since concave up corresponds to a positive second derivative and concave down corresponds to a negative second derivative, then when the function changes from concave up to concave down (or vise versa) the second derivative must equal zero at that point. So the second derivative must equal zero to be an inflection point. But don't get excited yet. You have to make sure that the concavity actually changes at that point.</span>
Answer:
x = 1.1, -1.1
Step-by-step explanation:
This is the answer because:
1) Take the root of both sides and solve.
= 1.1
2) x can also equal -1.1 because -1.1 times -1.1 gives us a positive 1.21 because negative x negative = positive
Hope this helps!
Answer:
x=6
Step-by-step explanation:
81^x=27^(x+2)
3^4x=3^3(x+2)
4x=3(x+2)
4x=3x+6
x=6
You can make about 11 burgers with that
10. 64in > 5ft
11. 2 mi < 3,333yds
12. 36yd 2 ft< 114 ft 2 in
13. They are =
14. 4ft 7in < 56 in
15. 25 ft > 8yd 11 in
