damianoscar120 damianoscar120

12-06-2018
Mathematics

contestada

Find a • b.

a = 4i + 8j, b = -2i + 3j

<2, 11>
32
<-8, 24>
16

Respuesta :

chudung1976 chudung1976

13-06-2018

That is about coordinates and the dot product
we have a has coordinates (4;8)
and b has coordinates (-2;3)
So we have a.b= 4x(-2)+ 8x3= -8+24=16
The answer is 16

Answer Link

Otras preguntas

Headlines are sometimes misleading because it is impossible to tell the whole truth in only a few words. a. True b. False

Story problems for division with fractions

after five tests, Mike's average score is 91. After 6 tests, his average score was 89. what was his score, on the sixth test?

What property is 160=8X20

Describe how you would plot a line that has a starting point at (2,-3) and a slope of 3/4

Why did the United States initially follow a policy of appeasement toward Germany? (1 point)The United States wanted to focus on its own economic troubles. The

The person with the lowest status in the Chinese household was A) an unmarried son. B) the mother of grown sons. C) a young husband. D) dead ancestors. E) a dau

A 3-gallon jug of juice costs $22.32. What is the price per pint?

The panda is an endangered species that feeds on bamboo, which only grows in certain forests.how will the destruction of such forest affect the pandas populatio

In the system of mass production, unskilled workers ?