Ask
your own question, for FREE!

Mathematics

OpenStudy (anonymous):

Given u = (5, - 4) and v = (2, 1) find u(v)

6 years ago
OpenStudy (anonymous):

A. 14 B. 10 C. 6 D. -3 E. 13

6 years ago
jimthompson5910 (jim_thompson5910):

Are those vectors?

6 years ago
OpenStudy (anonymous):

yes

6 years ago
jimthompson5910 (jim_thompson5910):

and you want the dot product?

6 years ago
OpenStudy (anonymous):

I need to find what u times v is when u is (5,4) and v is (2,1)

6 years ago
jimthompson5910 (jim_thompson5910):

have you ever heard of the term dot product?

6 years ago
OpenStudy (anonymous):

yes, i'm not quite sure how to find it though

6 years ago
jimthompson5910 (jim_thompson5910):

You just multiply the corresponding components. Then you add those products.

6 years ago
jimthompson5910 (jim_thompson5910):

Ex: (2,3) dot (4,5) = 2*4 + 3*5 = 8 + 15 = 23

6 years ago
OpenStudy (anonymous):

so do i just do that for (5,-4) and (2,1) and get 5*2+-4*1= 6?

6 years ago
jimthompson5910 (jim_thompson5910):

exactly

6 years ago
OpenStudy (anonymous):

Thanks so much for your help!

6 years ago
jimthompson5910 (jim_thompson5910):

yw

6 years ago
Can't find your answer?
Make a FREE account and ask your own question, OR you can help others and earn volunteer hours!

Latest Questions

MrMudd183:
In this excerpt from Phillip Freneau's poem u201cAmerican Liberty,u201d the speaker describes being u201cslaves and minions to a parliament.

58 minutes ago
0 Replies
0 Medals

rainarapp19:
Image by Jane M. Sawyer Estimate the measure of the clockwise angle formed by the minute hand and the second hand, then classify the angle.

5 hours ago
1 Reply
0 Medals

Val050301:
Given the diagram above, the fact that LPOM is a rectangle, and the fact that LN=

5 hours ago
1 Reply
0 Medals

Val050301:
What theorem or postulate can be used to justify that HIG=FIE?

7 hours ago
2 Replies
1 Medal

MrMudd183:
You need to write a five-page essay on Leo Tolstoyu2019s novel The Death of Ivan Ilych.

7 hours ago
7 Replies
1 Medal

MrMudd183:
please help, it's graded Which two descriptions indicate that a book is a memoir? A.

8 hours ago
0 Replies
0 Medals

MrMudd183:
Maria is writing a persuasive essay for her English class. She asks Marshall if it is important to use rhetorical appeals in her essay.

9 hours ago
1 Reply
0 Medals

gviviana:
Jackie wants to take a trip around the world. She plans to deposit $150 at the beginning of each month into an investment with a 4.

4 hours ago
1 Reply
0 Medals

susu:
A plumber is fitting pipes for a remodeled kitchen sink. The sink requires 3 different sections of pipe; the first is 2003-04-03-00-00_files/i0150000.

4 hours ago
1 Reply
0 Medals

Vocaloid:
having some trouble understanding how adding methanol increases the rate of hydrolysis on cellulose.

22 hours ago
1 Reply
0 Medals

iosangel:
how many minutes does it take water to reach 40u00b0 c on a stove?

22 hours ago
3 Replies
1 Medal

abungie32:
Each square on the grid represents 1 km2. What is the approximate area of this co

1 day ago
2 Replies
1 Medal

mhchen:
What's wrong with this proof: Suppose a = b. Then: a^2 = ab | Multiply by a (a^2)

1 day ago
1 Reply
3 Medals