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

Solve for x. x/15 = 3 4/5. A. 45 4/5 B. 57 C. 19/75 D. 3 18/19

what is the energy requirement for a for cellular respiration

Which of these statements is true? A. Sacrifice isn't necessary to achieve group goals. B. Individual productivity is more important than group productivity. C

oración que lleve la palabra pepino

Stephen does not like yogurt very much, but he loves apples. Since both make a good snack, Stephen’s mom makes a deal with Stephen. She will keep the refrigerat

In the 1700s, an effect of the Enlightenment was

what's an inventory map

Data collected by the drilling ship Glomar Challenger confirmed that _____. a. the ocean floor’s surface is smooth b. the ocean floor is not spreading c. non

Which best describes how igneous rocks are formed? A. Layers of dirt and other rocks are pressed together to form igneous rocks. B. Molten material in the ear

MC)Which of the following was a prominent argument used to support the United States’ acquisition of overseas territories during the late 19th century? The Unit