Treat x^4 as the square of p: x^4 = p^2.
Then x^4 - 5x^2 - 36 = 0 becomes p^2 - 5p - 36 = 0.
This factors nicely, to (p-9)(p+4) = 0. Then p = 9 and p = -4.
Equating 9 and x^2, we find that x=3 or x=-3.
Equating -4 and x^2, we see that there's no real solution.
Show that both x=3 and x=-3 are real roots of x^4 - 5x^2 - 36 = 0.
Answer:
it was rough it the beginning but I got it its B:
Triangular Prism.
Hope this helped :)
Answer:
And the 95% confidence interval would be given (0.107;0.227).
Step-by-step explanation:
Information given
number of trees with signs of disease
the sample selected
the proportion of trees with signs of disease
The confidence interval for the true proportion would be given by this formula
For the 95% confidence interval the significance is and , and the critical value would be
And replacing we got:
And the 95% confidence interval would be given (0.107;0.227).
Answer:
That would be 48 ounces
Step-by-step explanation: