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
How many times greater was the temperature in Miami (45) than the lowest in San Diego (25)
Greeley [361]

Answer:

<em>The temperature in Miami is 9/5 times the temperature in San Diego.</em>

Step-by-step explanation:

<u>Ratios</u>

To compare the temperature in Miami (45) with the temperature in San Diego (25), we use the division or ratio between both numbers:

\displaystyle \frac{45}{25}

Simplify the fraction dividing by 5:

\displaystyle \frac{9}{5}

Since the relation between them is 9/5, it means the temperature in Miami is 9/5 times the temperature in San Diego.

3 0
3 years ago
If I have 9 employees and only 5 of them worked. What is my percentage
Charra [1.4K]
Percentage of working employees is 55.56
workings:5/9 x100
4 0
3 years ago
A lab orders a shipment of 100 rats a week for experiments that the lab conducts. Prices for each weekly shipment of rats follow
Korolek [52]

Answer:

Therefore, the budget is 656.76$.

Step-by-step explanation:

We know that a lab orders a shipment of 100 rats a week for experiments that the lab conducts. Suppose the mean cost of the rats turned out to be $ 12.63 per week. We calculate budget of a lab for the next year's.

We know that 1 year have 52 weeks. We get

52 · 12.63 = 656.76

Therefore, the budget is 656.76$.

4 0
3 years ago
Read 2 more answers
A shirt rack contains 5 striped shirts, 8 solid shirts, and 6 polka dot shirts. How many outcomes are there when choosing a shir
Svetradugi [14.3K]

Answer:19

Step-by-step explanation:

Because there is 5 stripped shirts +8 solid shirts +6 polka dot shirts=19 shirts in total.

6 0
3 years ago
Read 2 more answers
1 5/6 divided by 5/6
marshall27 [118]
15 /6÷ 5/6
when we divide fractions we do the reciprocal of the second number that is of
5/6 = 6/5 and then multiply it by the first number
15/6 x 6/5
ans) 3 

6 0
4 years ago
Read 2 more answers
Other questions:
  • Solve the equation. y + 6 = –3y + 26
    9·2 answers
  • What is the GCF of 16 and 72
    15·1 answer
  • Can someone help me with this. ^_^ THANKS
    13·1 answer
  • What would x equal and the work to show why? Thanks!
    7·2 answers
  • What's the LCM to 45 and 30
    11·2 answers
  • Compute the line integral with respect to arc length of the function f(x, y, z) = xy2 along the parametrized curve that is the l
    5·1 answer
  • Please help ‼️ <br><br> Today's date is 28. What is half the date?
    15·1 answer
  • Teresa has 53 buttons. Teresa wants to make 12 puppets how many more buttons will she need
    8·1 answer
  • Jerry observed 5 head in tosses of his coin. Do you think this was a fair coin?
    11·1 answer
  • A school conducts 27 tests in 36 weeks. Assume the school conducts tests at a constant rate. What is the slope of the line that
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!