Answer:
n = -13
Step-by-step explanation:
The way i do this type of math is 21 - 8 and i know that its supposed to be a negative.
Answer:
The length is 90.033 and the angle that v makes with the positive x-axis is 153.339°
Step-by-step explanation:
Firstly we will have to convert our given vectors to their rectangular Cartesian vector form as follow,

Now that we have these, we can add them to obtain v as follows,

Now that we have the Cartesian vector form we can calculate its length and its direction with respect to the positive x-axis as follows(In fact we usually refer the angles from the positive x-axis),
So the length of the vector is 90.033 and the angle it makes with the positive x-axis is 153.339°.
F°g(x) = f(g(x)) = 3(g(x))² = 3(4x³ + 1)².
Now, when you expand the bracket, you will find that the highest degree or degree of the polynomial is 6.
∴<span>degree of fg (x) = 6</span>
Answer:
y = 2x + 4
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
Here m = 2 , then
y = 2x + c ← is the partial equation
To find c substitute (- 2, 0 ) into the partial equation
0 = - 4 + c ⇒ c = 0 + 4 = 4
y = 2x + 4 ← equation of line
Both plans cost the same when 50 texts are sent