Questions asked
The average number of acres burned by forest and range fires in a large New Mexico county is 4,300 acres per year, with a standard deviation of 750 acres. The distribution of the number of acres burned is normal. What is the probability that between 2,500 and 4,200 acres will be burned in any given year?
Which of following is an advantage that asexual reproduction has over sexual reproduction in lichens? A.Lichens that reproduce asexually do not need to make soredia. B.Asexual reproduction in lichens relies on spores, which are resistant to environmental risks. C.Asexual reproduction in lichens allows spores to be ejected and germinate. D.With asexual reproduction, the fungus needs to find a compatible photobiont. E.With asexual reproduction, both symbiotic partners are already associated.
Find the SLOPE of the above graph: $m = \frac{1}{2}x - 1$
For each of the following liquid solutes, predict whether it would be more soluble in water or hexane and explain your reasoning. If you don’t know the structure of the solute, look it up: methanol, benzene, acetic acid, and diethyl ether.
Ethernet is a technology associated with ___s. MAN PAN WAN LAN
Find the standard form of the equation of the hyperbola satisfying the given conditions. x-intercepts $\pm$ 9; foci at (-15,0) and (15,0)
By determining $f'(x) = \lim_{h \to 0} \frac{f(x+h) - f(x)}{h}$, find $f'(3)$ for the given function.\ f(x) = 4x^2\ f'(3) = \boxed{36} \text{ (Simplify your answer.)}$
A random sample of n measurements was selected from a population with unknown mean µ and standard deviation ? = 15 for each of the situations in parts a through d. Calculate a 99% confidence interval for µ for each of these situations. a. n = 60, x = 28 b. n = 250, x = 118 c. n = 80, x=18 d. n=80, x=5.15 e. Since we are given ? = 15 we should use the standard normal distribution to get the critical value here. TRUE or FALSE? O True O False
4) Draw mechanism for the following reaction: heat Answer:
j. Me 1a. Na, NH$_3$ (l) Et$_2$O 1b. Br CO$_2$H J 91% 1c. aq. NH$_4$Cl workup *k. 1. Ph MgCl O Me K 2. DMSO 83% OMe (CF$_3$CO)$_2$O 3. DIBAL-H, Et$_2$O