Answer:
(-2,-1)
Step-by-step explanation:
F(x) = x^3 - 2x^2 - 6x + 12 = 0
lets try substituting some of the factors of 12:-
f(2) = 8 - 8 -12+12 = 0 So one zero is x = 2 Answer
Dividing f(x) by (x - 2) we get:-
x^2 - 6 so the other 2 zeros are sqrt6 and - sqrt6 or 2.45 and -2.45 to the nearest hundredth Answer
Complete Question
Polymer composite materials have gained popularity because they have high strength to weight ratios and are relatively easy and inexpensive to manufacture. However, their nondegradable nature has prompted development of environmentally friendly composites using natural materials. An article reported that for a sample of 10 specimens with 2% fiber content, the sample mean tensile strength (MPa) was 51.1 and the sample standard deviation was 1.2. Suppose the true average strength for 0% fibers (pure cellulose) is known to be 48 MPa. Does the data provide compelling evidence for concluding that true average strength for the WSF/cellulose composite exceeds this value? (Use α = 0.05.)
t=8.169
P-value= ?
Answer:
a) 
b) Hence,We FAil to reject the alternative hypothesis and accept that the true average strength for the WSF/ cellulose composite exceeds 48 MPa.
Step-by-step explanation:
From the question we are told that:
Sample size 
Mean 
Standard deviation 
Significance level is taken as 
t test statistics

Therefore

Critical point



Therefore
P-value from T distribution table

Conclusion

We Reject the Null Hypothesis 
Hence,We FAil to reject the alternative hypothesis and accept that the true average strength for the WSF/ cellulose composite exceeds 48 MPa.
Answer:
your age is 95
Step-by-step explanation:
so what minus 400 gets you 210? 190 so you took 190 away from 400 or reduced it by 190 and got 210 but you said that it was twice your age so we can do the inverse of times 2 which is divided by 2 and you would get 95.
Anything lower than 5 in rounding turns into a zero. The number your rounding stays the same. Therefore the answer is 6 minutes if rounded to the nearest minute.