The most simplified is 22/32=11/16
Step-by-step explanation:
I am not sure what you want to calculate as ultimate goal.
but your have an error already in your third line in the picture.
(3-6i)(2-4i) = 3×(2-4i) - 6i(2-4i)
you had there a "+" instead of a "-".
and then you made subsequent mistakes in every line, some of them are funnily bringing you more back to the real result (e.g. -12i + 12i would be 0 and not -24i, but if the third line would have been correct, then yes, -24i is actually needed) - but not completely.
= 3×2 - 3×4i - 6i×2 + 6i×4i =
= 6 - 12i - 12i + 24×-1 = 6 - 24i - 24 = -24i - 18
then in the last 3 lines you kind of lose it completely. I am absolutely not sure, what you are calculating, and where the "+" cube from instead of "×" (multiplications) and such.
(3+6i)(2+4i) = 3×2 + 3×4i + 6i×2 + 6i×4i =
= 6 + 12i + 12i + 24×-1 =
= 6 + 24i - 24 = 24i - 18
is that what you wanted to show ?
Answer:
28 miles
Step-by-step explanation:
Let
x ----> the number of miles
y ----> the total cost of taxi fare
we know that
The linear equation in slope intercept form is equal to

where
m is the slope or unit rate
b is the y-intercept or initial value (value of y when the value of x is equal to zero)
In this problem we have
The unit rate or slope is equal to

The initial value or y-intercept is equal to
substitute

Find out how many miles can you ride for $10
Subtract $2 of the tip
we have
y=$10-$2=$8
substitute in the linear equation

Solve for x


[tex]x=28\ miles/tex]
Y=x+7 would make the slope less steep because the rate is not as big as 6.
Answer:
The distance between the origin and the given point is 13.9283 units.
Step-by-step explanation:
The coordinates of origin are (0,0,0)
We are given a point R(9,7,80
The distance formula:
, where
are coordinates of one point and
are coordinates of other point.
Putting the values as:

We get d = 
d = 
d = 13.9283
Thus, the distance between the origin and the given point is 13.9283 units.