Question

The vector u = (2500, 4900) gives the number of units of two models of laptops produced by a company. The vector v = (1700, 1450) gives the prices (in dollars) of the two models of laptops, respectively. Use dot products to determine the revenue for these two laptops if the price of each is increased by 4%.
Possible Answers:
A. $11,657,800
B. $11,525,000
C. $11,809,200
D. $11,667,100
E. $11,639,200

Answer 1

2500*(1700+1700*0.4e-1)+4900*(1450+1450*0.4e-1)

Answer 2

$11,809,200.00

Answer 3

if u= <a,b> and v=<c,d>
first scale up your price vector v with the .04

like this
<c+(c*.04),d+(d*.04)>


then do dot product


again if u= <a,b> and v=<c,d>

then u dot v

a*c+b*d

Answer 4

crap those e1 are for scientific notation

Answer 5

C. $11,809,200

Answer 6

Yes