Questions on Algebra: Introduction to vectors, addition and scaling answered by real tutors!

Tutors Answer Your Questions about Vectors (FREE)

Question 979889: Please help me with this vectors problem:
Given vectors of magnitude 3 and 4 with an angle between them of 80�, find the magnitude of the resultant.
Enter answer accurate to two decimal places.
Thank you in advanced.
Click here to see answer by ikleyn(52777)

Question 979871: Please help me with this vectors problem:
Given vectors of magnitude 3 and 4 with an angle between them of 80�, find the magnitude of the resultant.
Enter answer accurate to two decimal places.
Thank you in advanced.
Click here to see answer by Alan3354(69443)

Question 980592: Please help me solve this vectors problem:
Given vectors of magnitude 3 and 4 with an angle between them of 100�, find the magnitude of the resultant.
Thank you in advanced.
Click here to see answer by jim_thompson5910(35256)

Question 980597: Could someone please help me with this vectors problem:
Given: a= <-3,4> , b= <2,5>, c= <3,-8>
What is (a+b)-c?
Thank you in advanced.
Click here to see answer by jim_thompson5910(35256)

Question 980602: I'm having trouble finding 2a+b given: a= <-3,4>, b=<2,5>, c= <3,-8>.
Please help me with this problem.
Thank you.
Click here to see answer by Edwin McCravy(20054)

Question 980704: Could someone please help me solve this vectors problem:
If vector v has a direction of 135� and a magnitude of 7√2 , find the magnitude of its x and y components.
What is the magnitude of the x component?
Thank you.
Click here to see answer by Fombitz(32388)

Question 980708: I'm having trouble solving this problem. Could someone please help me?
Find the magnitude (exact value) and direction (in radians, to four decimal places) of the vector <2,5>.
What is the magnitude of the vector?
Thank you in advanced.
Click here to see answer by Fombitz(32388)

Question 980763: I'm having trouble finding the magnitude for this vectors problem. It requires the exact value of the magnitude and I'm having a difficult time finding it. Could someone please help me?
The question goes as follows:
Find the magnitude (exact value) and direction (in radians, to four decimal places) of the vector <2,5>.
What is the magnitude of the vector?
Thank you in advanced.
Click here to see answer by solver91311(24713)

Question 980773: Please help me with this problem:
Two forces act on a point. One force is 38 newtons. The other force is 16 newtons. The angle between the two forces is 48�. Find the magnitude of the resultant force in newtons.
Enter answer accurate to four decimal places.
Thank you.

Click here to see answer by Alan3354(69443)

Question 980765: I'm having trouble finding the magnitude for this vectors problem. It requires the exact value of the magnitude and I'm having a difficult time finding it. Could someone please help me?
The question goes as follows:
Find the magnitude (exact value) and direction (in radians, to four decimal places) of the vector <2,5>.
What is the magnitude of the vector?
Thank you in advanced.
Click here to see answer by solver91311(24713)

Question 980779: The position vector of vertice of a triangle are:(-1,2,3),(4,3,5) and (3,-2,7).find the area of the triagle.
Click here to see answer by Alan3354(69443)

Question 980799: Forces (4,-6,5),(-3,2,3),and(2,3,-6) all act on a particle which is moved from
r1=(3,-4,6) to r2=(2,-3,-4) to r3=(1,4,-2).Find the work done on the particle in moving from r1 to r2 and from r2 to r3.
Also what is the work done from moving from r1 to r3.(neglet gravity.forces are given in newton,distnce in metre)
Click here to see answer by solver91311(24713)

Question 980786: I'm having a difficult time solving this problem. Could someone please help me?
Two forces with magnitudes of 131 and 52 newtons act on point with a resultant force of 100 newtons. Find the angle, in radians, between the forces.
Enter answer accurate to four decimal places.
Thank you in advanced.
Click here to see answer by solver91311(24713)

Question 980796: I'm having difficulties solving this problem. Could someone please help me?
Two forces with magnitudes of 131 and 52 newtons act on point with a resultant force of 100
newtons. Find the angle, in radians, between the forces.
Enter answer accurate to four decimal places.
Thank you.
Click here to see answer by Timnewman(323)

Question 980888: Could someone please help me with this True or False question, and please explain why it is true or false?
The question goes as follows:
Two vectors are equal if their lengths are equal.
Thank you in advanced.
Click here to see answer by Alan3354(69443)

Question 980902: Please help me with this vectors question.
P.S. I tried entering a,-b in < > but the site wouldn't show that, so I am entering a,-b in ( ) .
Question:
If v_1= (a, -b) and v_2= <-2a, 2b>, are v_1 and v_2 parallel?
Thank you.
Click here to see answer by ikleyn(52777)

Question 980901: Please help me with this vectors question.
P.S. I tried entering a,-b in < > but the site wouldn't show that, so I am entering a,-b in ( ) .
Question:
If v_1= (a, -b) and v_2= <-2a, 2b>, are v_1 and v_2 parallel?
Thank you.
Click here to see answer by KMST(5328)

Question 980932: Could someone please help me with this vectors question?
True or False:
If v(1)= < a,b >, and L(1) is a line incident with v(1), then L(1) has a slope equal to b/a.
Thank you in advanced.

Click here to see answer by Fombitz(32388)

Question 980952: If v(1) = < a,-b> and v(2)= < -2a,b >, does v(1)+v(2) = 0?
Click here to see answer by jim_thompson5910(35256)

Question 980954: Given the vectors v(1) = <3,4>, v(2) = <1,1>, and v(3) = <2,7>
What is the magnitude of vector v(1)?
Click here to see answer by jim_thompson5910(35256)

Question 980957: This is a follow up question for my last one.
Given the vectors v(1) = <3,4>, v(2) = <1,1>, and v(3) = <2,7>
What is the direction of vector v(1)?
Thank you.
Click here to see answer by jim_thompson5910(35256)

Question 980960: Given the vectors v(1) = <3,4>, v(2) = <1,1>, and v(3) = <2,7>
What is the magnitude of vector v(2)?
Click here to see answer by Timnewman(323)

Question 980942: True or False:
If v(1) = < a,-b > and v(2) = < -b,a > ,then v(1) and v(2) are perpendicular.
Click here to see answer by Timnewman(323)

Question 980949: If v(1) = < a,-b > and v(2) = < -2a, b > does v(1)+v(2) = 0?
Click here to see answer by Fombitz(32388)

Question 981582: Given vectors: v(1) = <3,4>, v(2) = <1,1> and v(3) = <2,7>
What is the direction of the vector v(3)?
Please enter the exact value, using arctangent function.
Thank you.
Click here to see answer by Alan3354(69443)

Question 980790: If (3,5,6) and (2,3,-4) are displaced by (3,-2,4).find the work done.
Click here to see answer by Timnewman(323)

Question 980790: If (3,5,6) and (2,3,-4) are displaced by (3,-2,4).find the work done.
Click here to see answer by Azubuike345(2)

Question 983743: Prove that the sum of all angles of a triangle is 180'.
Click here to see answer by rothauserc(4718)

Question 983854: A regular hexagon ABCDEF has a center O. The given information is that OA=6a and OB=6b. Can you explain how you find vector EF? Thank you very much.
Click here to see answer by ikleyn(52777)

Question 984221: Consider a vector for which a= 48�30' and whose magnitude is 32.6. What is the horizontal component? (Enter you answer rounded to one decimal place.)
Thank you in advanced.
Click here to see answer by jim_thompson5910(35256)

Question 984223: Forgive me, but I forgot to ask what the vertical component is the following question:
Consider a vector for which a= 48�30' and whose magnitude is 32.6. What is the vertical component? (Enter you answer accurate to one decimal place.)
Thank you.
Click here to see answer by Boreal(15235)

Question 984229: Consider a vector v with direction angle θ=135� such that |v|=√2.
Find the x-component.
Thank you.

Click here to see answer by jim_thompson5910(35256)

Question 984227: Consider a vector v with direction angle θ=135� such that |v|=√2.
Find the x-component.
Thank you.
Click here to see answer by rothauserc(4718)

Question 984291: Consider a vector v with direction angle θ=135� such that |v|=√2.
Find the y-component.
Thanks.

Click here to see answer by Fombitz(32388)

Question 984291: Consider a vector v with direction angle θ=135� such that |v|=√2.
Find the y-component.
Thanks.

Click here to see answer by ikleyn(52777)

Question 984300: What is the magnitude of vector <4,7>?
Thank you
Click here to see answer by Fombitz(32388)

Question 984313: I need help finding the direction in this vectors problem:
What is the direction angle of vector <4,7>
(Round your answer to the nearest 10 minutes.)
Use "dms" notation (degrees, minutes, seconds.)
Thank you.
Click here to see answer by rothauserc(4718)

Question 984323: I'm sorry for asking this again, but I did not type in the question correctly.
What is the direction angle of vector <4,7>
(Round your answer to the nearest 10 minutes.)
Use "dms" notation (degrees, minutes, seconds). Enter 0 for the number of seconds.
Thank you again.

Click here to see answer by solver91311(24713)

Question 984328: Write the vector with direction angle 240� and magnitude 10 in the form ai+bj.
Thank you in advanced.

Click here to see answer by solver91311(24713)

Question 984334: Please help me solve and explain this vector problem:
Write the vector with direction angle 240� and magnitude 10 in the form ai+bj.
Thank you.
Click here to see answer by Fombitz(32388)

Question 984376: Find the angle (rounded to the nearest 10 minutes) between the following pair of vectors:
u=-i-4j
and
v=3i-4j
Enter your answer in degrees, minutes, seconds, enter 0 for the number of seconds.
Thank you.

Click here to see answer by solver91311(24713)

Question 984346: Find the angle (rounded to the nearest 10 minutes) between the following pair of vectors:
u=-i-4j
and
v=3i-4j
Enter your answer in degrees, minutes, seconds, enter 0 for the number of seconds.
Thank you kindly.
Click here to see answer by Alan3354(69443)

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