Answer:
10°C
Step-by-step explanation:
The temperature is 50°F
Let's assume that 50°F = x°C
The formula is;
(x°C × ) + 32 = 50°F
x°C = 50 - 32 = 18
x°C = 18
x°C = × 18 = 10°C
So 50°F is equal to 10°C.
Answer:
50
Step-by-step explanation:
I believe that it’s adding 12 to the division of x and 6
Answer:
See proof below
Step-by-step explanation:
Let . If w=-z, then r=0 and r is real. Suppose that w≠-z, that is, r≠0.
Remember this useful identity: if x is a complex number then where is the conjugate of x.
Now, using the properties of the conjugate (the conjugate of the sum(product) of two numbers is the sum(product) of the conjugates):
=
Thus . From this, . A complex number is real if and only if it is equal to its conjugate, therefore r is real.