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Explain the phenomena or theory involves certain actions affects the rate of reaction
using platinum in manufacturing nitric acid reduces the production cost
A metal has an atomic radius of 0.1335 nm . The volume of its cubic unit cell is
2.9305 x10-23 cm3. What is the geometry of the unit cell?
{x/x is an integer such as x2 =2}
A random variable x has a mean 4 and a standard deviation of 2.what is the corresponding z-score for x=7
A Region of land 50meters by 40meters is to cross diagonally by a road 15meters wide. What is the roads area?
Four coins are tossed. Let A be the random variables representing the numbers of heads that occur. Find the values of the random variables A.
How many rows appear in a truth table for each of these
compound propositions?
a) (q -+ -'p) v (-'P -+ -.q)
b) (p v -.t) /\ (p v -'s)
c) (p -+ r) V (-,s -+ -.t) v (-,u -+ v)
d) (p /\ r /\ s) V (q /\ t) V (r /\ -.t)
If the pH of 2.55 L calcium hydroxide solution, Ca(OH)2, is 11.64, calculate the amount (in gram) of calcium hydroxide in the solution.
The BRIT Sports Bar sells a large quantity of Guinness every Saturday. From past records, the pub has determined the following probabilities for sales:
Number of Crates (X) P(x)
18 0.15
19 0.10
20 0.32
21 0.05
22 0.13
23 0.25
a. Verify that this [P(x)] is a probability distribution.
e. Calculate the variance of the distribution?
f. Determine the standard deviation of the distribution?
Name an advantage and a disadvantage of H/Het and Het/Het eliminations.
#340153 on Dec 2023