Questions LLC
Login
or
Sign Up
Ask a New Question
Mathematics
Vectors
Dot Product
find the dot product of u=2i-7j and v=i+8j
1 answer
2*1 = 2
-7*8 = - 56
+2-56 = -54
You can
ask a new question
or
answer this question
.
Related Questions
A circle with radius x is shown below.
26 6 What is the value of x? Round the answer to the nearest tenth. Image:
Question:
Find (3a+b)dot(2b-4a) if a=-i-3j+k and b=2i+4j-5k I did: =3(-1,-3,1)+(2,4,-5)dot 2(2,4,-5)-4(-1,-3,1)
For which value(s) of k will the dot product of the vectors (k,2k-1, 3) and (k,5,-4) be 7?
I did this so far, 2k-1=5 6/2 k=3
Write a proof.
Given: AB * BE = CB * BD Prove: ΔABC ~ ΔDBE Image:
Find AB. Round to the nearest tenth if necessary.
12 18
Let F1=10i-15j-20k,F2=6i+8j-12k. Find their dot product and the angle between those two vectors
For a geography project, you have surveyed the people in your hiking club and swimming
club to find the number of states they
For a geography project, you have surveyed the people in your hiking club and swimming club to find the number of states they
In the circle, AB=42, BC=18, and CD=4. The diagram is not drawn to scale.
Image:
The polygons are similar but not necessarily drawn to scale. What is the value of x?
Image: