Answer:
a
Step-by-step explanation:
<span> Do you mean this one? </span>∑
It is summation.
Answer:
Realization :
since there are 3-variable. Therefore 2ⁿ = 2³ = 8
From the attached solution, f(x,y,z) = y' + xz'
also' see the circuit diagrams of my realizations of AND-OR and NAND-NAND
Step-by-step explanation:
See attached picture for minimal 2-level AND-OR and NAND-NAND of the logic function.
f(x,y,z) = y' + xz' was designed from the function f(x,y,z) = Σm(0,1,4,5,6)
Then, minimal 2-level AND-OR was designed and after was NAND-NAND designed as well.
Let x = total distance he covered
3x/4 by bus
1/2 . x/4 = x/8 by jogging
the remaining distance = x/8 by walking
thus x/8 = 800ft
x = 8 . 800 = 6400ft
Answer:
a=50 b=20
Step-by-step explanation:
Call A and B the 2 present ages.
Ten years from now, A is twice as old as B -->
(A + 10) = 2(B + 10) (1)
Five years ago, A was 3 times as old as B -->
(A - 5) = 3(B - 5) (2).
Solve the system (1) and (2).
From (2) --> A = 3B - 15 + 5 = 3B - 10.
Replace this value of A into (1) -->
3B - 10 + 10 = 2B + 20 --> B = 20. Then,
A = 3B - 10 = 60 - 10 = 50.
Check
!0 years from now --> A = 60 and B = 30 --> A = 2B .OK
5 years ago --> A = 45 and B = 15 --> A = 3B. OK
