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
swat32
3 years ago
10

Two vectors and are given by and . If these two vectors are drawn starting at the same point, what is the angle between them

Mathematics
1 answer:
castortr0y [4]3 years ago
7 0

Answer: hello your question is incomplete below is the complete question

The Two vectors;  A = 5i + 6j +7k and B = 3i -8j +2k.

answer;

angle = 102°

Step-by-step explanation:

multiplying the vectors

A.B = |A| * |B|* cosθ

hence : Cosθ = (Ai*Bi )+ (Aj*Bj) + ( Ak*Bk/ (√A^2 *√B^2 )

                       = 15 - 48 + 14 /(√25+26+29) * (√9+64+4)

                      = -0.206448454

θ = cos^-1 ( -0.206448454) = 101.9° ≈ 102°

You might be interested in
PLEASE HELP
Aloiza [94]
  • Volume=2.7million km^3
  • Base=339milliom km^2

\\ \tt\longmapsto Volume=Base\times Height

\\ \tt\longmapsto Height=\dfrac{Volume}{Base}

\\ \tt\longmapsto Height=\dfrac{2.9km^3}{339km^2}

\\ \tt\longmapsto Height=0.00079km

\\ \tt\longmapsto Height=7.9m

7 0
3 years ago
The models below are shared to show 4/8 and 2/4. What do the models show about these fractions
Vanyuwa [196]

Answer:

I do not see the model, but based on what you are telling me, I believe that both the fractions are equal is what is being shown. They are, in other words, equivalent fractions

7 0
3 years ago
Read 2 more answers
El Club de Matemáticas está horneando pasteles para una venta de
SVETLANKA909090 [29]

Answer:

56

Step-by-step explanation:

El problema se puede transcribir en esta ecuación:

2x + x = 168

siendo x las nectarinas

sumas los términos de x:

3x=168

despejas x:

x = 168 ÷ 3

x = 56

5 0
2 years ago
Write an expression for the sequence of operations described below.
Lemur [1.5K]
This might look hard at first, but if you break it down into parts, it will be much easier. With that said, start with what you know. You see that the word problem says "the difference of y and 9", which means that you have to stubtract them. So, part of the equation is going to be y - 9. Now to look at the rest of the word problem. It says to divide by 3, so now you have to take what you have so far and divide that by 3. This means that you are going to have to divide the y - 9 by 3. 

Your answer should be:
y - 9 / 3

***** Note: The slash means division. *************************************
8 0
3 years ago
There are 24 students in Ms. Messing's class 6 more students walk to school then ride their bikes thus number of students who ri
Juli2301 [7.4K]
Walk = x + 6
Bike = x
Driven = x

x + x + x + 6 = 24
combine like terms

3x + 6 = 24
subtract 6 from both sides 

3x = 18
divide both sides by 3 to isolate x

x = 6

Walk = x + 6 = 6 + 6 = 12

12 students walk to school.
3 0
3 years ago
Other questions:
  • What is 12-(3-1/2)? I NEED ASAP!! THANK YOU
    10·2 answers
  • HELP TRIGONOMETRY!! Solve for x and y
    12·1 answer
  • 1.I am equivalent to 1/2
    9·1 answer
  • Pls click the screnshot
    9·1 answer
  • What is the additive inverse of the complex number 9 – 4i?
    14·1 answer
  • A right triangle has one leg with a length of 48 and a hypotenuse with a length of 80. What is the length of the other leg?
    6·1 answer
  • What is the value of y in the solution to the system of equations?
    7·1 answer
  • Which describes a number that cannot be irrational?
    13·1 answer
  • What of the following is true for all parallelograms? (2 points)
    11·1 answer
  • PLEASE HEEEEEEEEELP ME............
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!