11011 - 101 = 10110 (putting the zero in front does not matter)
Base two only accommodate 1's and 0's. Base two are called binary.
Check the picture below
Note 10 - 1 in binary equals 1
when we borrow to 1, that zero becomes 10, then 10 minus 1 equals 1.
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Answer:
add operations or maybe out the PEMDAS
Answer:
Step-by-step explanation:
square of 15 + square of x = square of 21
225 + square of x = 441
441 - 225 = 216
x = 216
Answer:
x = -5, y = -6, z = -3
Step-by-step explanation:
Given the system of three equations:

Write the augmented matrix for the system of equations

Find the reduced row-echelon form of the augmented matrix for the system of equations:

Thus, the system of three equations is

From the last equation:

Substitute it into the second equation:

Substitute y = -6 and z = -3 into the first equation:

Answer:
B
Step-by-step explanation:
because we just multiply the bottom equation by - and we eliminate 7y. now we have -2x=-10 to get x we divide -10 by -2 and get the answer