Ask
your own question, for FREE!
Mathematics
7 Online
OpenStudy (anonymous):
Given vectors u= 4i+9j and v= -3i+ 7j, find 7u-7v in terms of i and j
Still Need Help?
Join the QuestionCove community and study together with friends!
OpenStudy (zzr0ck3r):
7u = 7*4i+9*7j -7v = (-7)(-3)i+(-7)(7)j 7u-7v=7u+(-7v) = 7*4i+9*7j+(-7)(-3)i+(-7)(7)j=7*4i+(-7)(-3)i+9*7j+(-7)(7)j = (7*4+(-7)(-3))i+(9*7+(-7)(7))j
OpenStudy (anonymous):
Thank you so much!
OpenStudy (zzr0ck3r):
np
OpenStudy (zzr0ck3r):
I prob coult have done the easy arithmetic and made it look better 7u=21i-49j ....
OpenStudy (anonymous):
The answer options are A: 9i+48j B: 52i+48j C: 15i+48j D: 49i+14j
Can't find your answer?
Make a FREE account and ask your own questions, OR help others and earn volunteer hours!
Join our real-time social learning platform and learn together with your friends!
Join our real-time social learning platform and learn together with your friends!
Latest Questions
abby2blessed:
How do you guys feel about second chances? Concerning relationships, both romantic and otherwise.
TJH:
love Love, it comes, it goes But what if it stayed stayed in the silence the storm stayed when the world was loud for me it's different; it left when it was
Puffer:
General question what came first the chicken or the egg itu2019s a trick question
Bounty:
the world keeps moving fast and I'm stuck in a time lapse all I need is a minute
Bounty:
can I get so tips on how to start my journey into semi-realism art also on how to
Strawberryluna:
Read my poem. Im not for criticism its a poem I wrote after my breakup: Youu2019ll never understand the way you made me break, I hate that I still love you
Bounty:
first poem in a min- (tittle)? one moment i'm fine I smile till my face burns I laugh till I cant breath Then I cry I wonder where I went wrong I listen to
Twaylor:
3d printing a glider (for 150 pound 5'8 person - prolly should make it for up to
abby2blessed:
How do you guys feel about second chances? Concerning relationships, both romantic and otherwise.
3 days ago
0 Replies
0 Medals
TJH:
love Love, it comes, it goes But what if it stayed stayed in the silence the storm stayed when the world was loud for me it's different; it left when it was
4 days ago
4 Replies
3 Medals
Puffer:
General question what came first the chicken or the egg itu2019s a trick question
4 days ago
5 Replies
1 Medal
Bounty:
the world keeps moving fast and I'm stuck in a time lapse all I need is a minute
1 week ago
4 Replies
0 Medals
Bounty:
can I get so tips on how to start my journey into semi-realism art also on how to
2 weeks ago
0 Replies
0 Medals
Strawberryluna:
Read my poem. Im not for criticism its a poem I wrote after my breakup: Youu2019ll never understand the way you made me break, I hate that I still love you
4 days ago
5 Replies
2 Medals
Bounty:
first poem in a min- (tittle)? one moment i'm fine I smile till my face burns I laugh till I cant breath Then I cry I wonder where I went wrong I listen to
2 weeks ago
5 Replies
1 Medal
Twaylor:
3d printing a glider (for 150 pound 5'8 person - prolly should make it for up to
3 weeks ago
5 Replies
0 Medals