Answer:
10.6 ft
Step-by-step explanation:
to find the diagonal length of the stairway we can use the pythagorean theorem or a^2 + b^2 = c^2
6'4" is also 6 1/3' or 19/3'
8'6" is also 8 1/2' or 17/2'
now square them both
361/9 + 289/4
make them have the same denominator
1444/36 + 2601/36
add them
4045/36
take the square root
10.6000524 is your answer
10.6 ft
The different sets of initials can be formed if every person has one surname (i.e., last name) and either one or two given names (i.e., a first name, or a first and middle name) is 15600.
There are 26 possible letters, each set of initials would have 3 letters in it, order doesnt matter, i.e. ABC does not equal ACB. So type in 26P3 on your calculator (P=permutation).
15600.
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14 sec because
In 2sec=600
In4 sec=1200
In6 sec =1800
In 8sec =2400
In10 sec=3000
In12sec=3600
In 14sec=4000
In 14seconds it covers 4000
Start by subtracting 8
-2x>14
Divide by -2, because it’s a negative however, reverse the sign
X<-7
Vertex: (4,-11)
Focus: (4, -43/4)
Axis of Symmetry: x=4
Directrix: y=-45/4
I hope this is what you're asking for, and if not then just tell me what answer choices you have and I'll see what I can do from there. Thanks