F(x) = -x2(x + 9)(x2 - 1) A) O, touches the x-axis and turns around;
-9, crosses the x-axis;
-1, crosses the x-axis;
1, crosses the x-axis
00, touches the x-axis and turns around;
-9, crosses the x-axis;
1, touches the x-axis and turns around
B) O, touches the x-axis and turns around;
9, crosses the x-axis;
-1, touches the x-axis and turns around;
1, touches the x-axis and turns around
D) O, crosses the x-axis;
-9, crosses the x-axis;
-1, crosses the x-axis;
1, crosses the x-axis

  about 5.6 days

step-by-step explanation:

we can fill the given information into the decay equation and solve for the value of t at which half the sample remains.

the half-life is about 5.6 days.

13

step-by-step explanation:

169-1=168

168-3=165

165-5=160

160-7=153

153-9=144

144-11=133

133-13=120

120-15=105

105-17=88

88-19=69

69-21=48

48-23=25

25-25=0

since it took 13times to completely subtract it hence its square root is 13

imma say 16%. sorry if its wrong. i'm doing the same stuff right now

step-by-step explanation:

answer: 5100 just subtract

step-by-step explanation: