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Heights of the students in a class are given in the distribution below:
5' - 5'2" 10
5'2" - 5'4" 40
5'4" - 5'6" 25 .
Find:
1. Central Tendency
Sailright Inc. manufactures and sells sailboards. Management believes that the price elasticity of demand is -3.0. Currently, boards are priced at $500 and the quantity demanded is 10,000 per year,
a. If the price is increased to $600, how many sailboards will the company be able to sell each year?
b. How much will total revenue change as a result of the price increase?
Suppose that 0.250mol
m
o
l
of methane, CH
4
(g)
C
H
4
(
g
)
, is reacted with 0.400 mol
m
o
l
of fluorine, F
2
(g)
F
2
(
g
)
, forming CF
4
(g)
C
F
4
(
g
)
and HF(g)
H
F
(
g
)
as sole products. Assuming that the reaction occurs at constant pressure, how much heat is released?
A 1 liter solution is made by adding 0.6209 moles NaH2PO4 and 0.8581 moles Na2HPO4. What will be the final pH of this solution after addition of 1. 9717 ml of 3. 8914 molar HCl? The pka of sodium dihydrogen phosphate is 6.86.
A beaker contains a total concentration of 0.42 molar of weak acetic acid with pka = 2.21 and pH = 4.69. Calculate the percent of the undissociated form. Calculate answer to three decimal places, do not specify units in the answer.
- How can you contribute to the conservation and restoration of the environment?
A furniture manufacturer can sell dining-room tables for $70 apiece. The manufacture‘s total cost consists of a fixed overhead of $8,000 plus production costs of $30 per table.
a. How many tables must be the manufacturer sell to break even?
b. How many tables must the manufacturer sell to make a profit of $6,000?
c. What will the manufacturer’s profit or loss if 150 tables are sold?
Other philosophers disliked the sophists’ ideas about ethics. What is your opinion of the Sophists’ ethical ideas?
A beaker contains a total concentration of 0 62 molar of weak acetic acid with pka = 3.97 and pH = 2.22. Calculate the molar concentration of the undissociated (AH) form. Calculate the answer to three decimal places, do not specify units in the answer.
Assume that you are Protagoras and people pay you for advice. A man asks you whether he should lie about his past work experience in order to get hired for a job he wants. As Protagoras, what advice would you give him?
#339914 on Dec 2023