Answer:
Step-by-step explanation:
GIVEN: two two-letter passwords can be formed from the letters A, B, C, D, E, F, G and H.
TO FIND: How many different two two-letter passwords can be formed if no repetition of letters is allowed.
SOLUTION:
Total number of different letters 
for two two-letter passwords 
different are required.
Number of ways of selecting different letters from 
letters
Hence there are different two-letter passwords can be formed using letters.
Answer:
S= 1.<u>3</u>r
Step-by-step explanation:
The 3 is underlined because it was suppose to go on top of the 3 but it didn't give me the option but that means infinity of 3
If you need more information you cant tell me hope this helped!
Answer:
b.
Step-by-step explanation:
Answer:
1.125 pages per minute
Step-by-step explanation:
Mika read a 405 page book in 6 hours.
6 hours is equivalent to
6 × 60 minutes = 360 minutes
Number of pages read per minute = 405/360
= 9/8 = 1.125 pages
Mika read 1.125 pages per minute.
Answer:
Great work!
Step-by-step explanation:
These kind of questions are calculated through Riemann Sum. You can evaluate any definite integral using the Riemann Sum. It should be in the following form:
f(x)dx on the interval [a, b], or
Now f(x) is simply y. Therefore in this example y = x^3 - 6x. We just need the sufficient amount of data to apply the Riemann Sum, including the interval [a, b] that bounds the area, and the the number of rectangles 'n' that we need to use.
Consider an easier approach to this question: (First attachment)
Graph: (Second Attachment)
