1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Art [367]
3 years ago
15

Given that v = (5,-4, 4) and w = (9-2,7) , evaluate v • w.

Mathematics
1 answer:
yuradex [85]3 years ago
4 0

Answer:

a

Step-by-step explanation:

Given

u = (x₁, y₁, z₁ ) and v = (x₂, y₂, z₂ ) then the dot product is

u • v = (x₁ x₂ ) + (y₁ y₂ ) + (z₁ z₂ )

Then

v • w

= (5 × 9) + (- 4 × - 2) + (4 × 7)

= 45 + 8 + 28

= 81 → a

You might be interested in
A piece of equipment is purchased for $18,000 & has a salvage value of $2,000. The estimated life is 10 years & the meth
Travka [436]

Answer:

The total value would be 17,210.

8 0
2 years ago
From 126 ounces to 48 ounces nearest percent
lianna [129]
That is a decrease of 78 ounces
5 0
3 years ago
A = {Natural numbers less than 10}
VikaD [51]

Answer:

PUPPETS???? PUPETT PUPPETTTTT????!!!!!!

7 0
2 years ago
20/45 in simplest form
san4es73 [151]
20/45 would be 4/9 in simplest form. hope that helped
7 0
3 years ago
Read 2 more answers
Anna has 30 feet of fence to go around her garden.the lettuce will be in a 8 ft × 5 ft section and the carrots will be in a 2 ft
Zanzabum
No it wont work, she can get rid of 24 feet of lettuce, then everything will work.
4 0
3 years ago
Other questions:
  • Greg plowed for 2.5 hours in the morning, 1 hour and 15 minutes in the afternoon, and 1 hour and 30 minutes in the evening. How
    8·1 answer
  • Y=6/X; X= 9 <br> what is the answer and how do you solve this?
    7·1 answer
  • Which ones do i check
    6·2 answers
  • What are the solutions of:<br> (X-5) (10+4x)=0
    15·1 answer
  • Which could be the resulting equation when elimination is used to solve the given system of equations?
    9·2 answers
  • 3+5i/-2+3i perform operation
    6·1 answer
  • How do you simplify the following
    8·1 answer
  • Using inductive reasoning, find the next two terms in the sequence. 1,1,2,3,5,8,13,__,__.
    6·2 answers
  • Consider this cube with a volume of 64 cubic centimeters.
    9·1 answer
  • The ratio : y is 3:1
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!