hcortes48484 hcortes48484

02-12-2020
Mathematics

contestada

Use the dot product to find v when v=(-2 -1)
a. -1 c. √5
b. -3 d. √3

Respuesta :

LammettHash LammettHash

02-12-2020

Since you're only given the one vector, I assume you're supposed to find the magnitude of v, or ||v||, using the dot product.

We have

v • v = (-2, -1) • (-2, -1) = (-2)² + (-1)² = 5

so that

||v|| = √(v • v) = √(5)

and the answer is C.

Answer Link

Otras preguntas

Graph the following equation: y = -5x + 1

4 friends went golfing this morning. On a particular hole, Aisha is 3 under par, Bob is 4 above par, Claire is at par, and Dorian is 1 under par. What are the s

I feel depressed how about u

Match these items. 1. Spanish and Portuguese are the main languages South America 2. where Argentina is located Africa 3. most people speak English Latin A

8x5=(5x5)+(_x5) fill in missing number

4 1/2 cups of salad dressing fill 3 3/4 identical jars. How many cups fill each jar

I need help with this question please

bakit mahalagang magsulat ng liham

21. Which discovery would challenge the validity of this cladogram? A. A large aquatic vascular plant about 200 million years old B. A species of algae that has

What is the least common denominator of 1/8 and 2/3