Answer:
a)The component form is
b)The magnitude is √65
c) <2,14>
Step-by-step explanation:
Recall that:
We substitute the position vectors to get:
We subtract the corresponding components to obtain:
This gives:
This simplifies to:
The magnitude of a vector in the component form:
is
This means:
c) We have the vectors u = <4, 8>, v = <-2, 6>.
We want to find:
u+v
This implies that:
u+v=<4,8>+<-2,6>
We add the corresponding components to get;
u+v=<4+-2,8+6>
u+v=<2,14>
Part A = Jillian is not correct, bottom right answer
Part B = The first blank is fraction fs
The effective tax rate is calculated as
82.5% of $80,000 = $66,000
$80,000 - $66,000 = $14,000
$14,000 × 24% = $3360
$3360 + $14089.50 = $17449
Therefore , effective tax rate is
$17,449.50 ÷ $86,000 = 20.29%.
$42,400
D
The surface area of the rectangular prism is the sum of all the 6 faces.
Area = 2 (3*3.4) = 20.4
Area = 2 (3*4.1) = 24.6
Area = 2 (3.4*4.1) = 27.88
Thus, Surface Area = 20.4 + 24.6 + 27.88 = 72.88 ft ^2