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
Ket [755]
3 years ago
5

Find a ⋅ b. a = 9i + 5j, b = 4i + 3j

Mathematics
2 answers:
amm18123 years ago
7 0
ANSWER

a.b = 51


EXPLANATION


The given vectors are:


a = 9i + 5j
and

b = 4i + 3j


To find the dot product of the two vectors, we multiply the corresponding components and add them.


a.b = 9 \times 4 + 5 \times 3


This implies that,

a.b = 36+ 15


a.b = 51


Therefore the dot product of the two vectors is 51.


kondor19780726 [428]3 years ago
6 0
\mathbf a\cdot\mathbf b=9\times4+5\times3=36+15=51
You might be interested in
What're all the numbers divisible by 3 and 9?
KIM [24]
3 and 1 are divisible by 3. 3, 1, and 9 are divisible by 9
7 0
3 years ago
Read 2 more answers
A line passes through (–1, 5) and (1, 3). Which is the equation of the line?
fredd [130]

Answer:

Use the slope formula and slope-intercept form  y = m x + b  to find the equation.  y = − x + 4

7 0
3 years ago
Please help me now plz <br> I will mark you brainliest
Sphinxa [80]

Answer:

theta = 24.4 degrees

Step-by-step explanation:

This is a right triangle.

sin theta = opp/ hyp

sin theta = 33/80

Take the inverse of each side

sin^-1 sin(theta) = sin^-1 (33/80)

theta =24.36197794

To the nearest tenth

theta = 24.4 degrees

5 0
2 years ago
Which of the following is divisible by 2<br> 70581<br> 16853<br> 90000
Svetllana [295]
90000 is divisible by 2
6 0
2 years ago
Read 2 more answers
Jesse used of a can of broth in his recipe. Maddy used of a same-sized can of broth in her recipe. Which statement is true? A. J
Paha777 [63]
It c they both used the same amount of broth
7 0
3 years ago
Read 2 more answers
Other questions:
  • During a four-week period, you worked the following hours: Week 1- 36 3/8 hr; Week 2- 41 1/4 hr; Week 3- 40 1/2 hr; Week 4- 38 3
    13·1 answer
  • A football team gained 6 yards on a first down, lost 15 yards on the second down
    14·1 answer
  • Please help! Look at the image. Will give brainliest and 100 points if these are answered!
    7·2 answers
  • In the diagram below, angleAXB and angleCXB form a linear pair. Which statement must be true about the angles?
    11·1 answer
  • A trapezoid has 63.4 kilometers base and 23.2 kilometers base, as well as 75.3 kilometers height. What is the area?
    11·2 answers
  • Karl wants to fertilize his 6 acres. If it takes 7 StartFraction 2 Over 3 EndFraction bags of fertilizer for each acre, how much
    14·2 answers
  • Mrs. Yamaguchi's class weighed the potatoes that they grew in their garden and recorded the data in a table. What are the least
    5·1 answer
  • Determine the volume of the entire Charter School.​11 points
    5·1 answer
  • One angle of a right angled triangle is 63degree .find the other angle in grades​
    11·2 answers
  • Consider the pattern:2; 5; 8; 11; ......... Write down the next two terms
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!