Answer:

Step-by-step explanation:
Given
-12 and -15
Required
Solve the difference
The question you posted included the solution. However, the solution is incorrect;
The absolute difference is represented as:

In this case:


So, the distance is calculated as:

Open bracket



Step-by-step explanation:
there is no real number solution for the square root of a negative number.
a sqare root multiplied by itself had to deliver exactly the number inside the square root.
so for sqrt(-49), what can be the answer ?
which number multiplied by itself gives -49 ?
it any negative number at that.
because
a × a = a²
and
-a × -a = a² but definitely not -a².
we get a negative number only, when we multiply a positive number with a negative number or vice versa.
the only solution is complex or imaginary (based on the imaginary number i):
i² = -1
i = sqrt(-1)
so, sqrt(-49) = sqrt(49 × -1) = 7×sqrt(-1) = 7i
but again, no real solution.
Answer:
0.05 cents
Step-by-step explanation:
Given that George has $2.00 to spend at a store. He buys 3 cans of soda. Each can of soda costs 65 cents.
George has to use both multiplication and subtraction to find out the change
Spending at a store...$2.00
Costs of each can...$0.65
Cost of 3 cans....3×0.65= $1.95
Change he receives.... 2-1.95 = 0.05 cents
Squares have them due to all sides and angles being congruent