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
Yuliya22 [10]
3 years ago
8

Determine a scalar c so that the angle between a = i + cj and b = i + j is 45°.​

Mathematics
1 answer:
Marina CMI [18]3 years ago
6 0

Answer:

c=0

Step-by-step explanation:

ATQ a.b=|a||b|sin(45)

1+c=sqrt(1+c^2)*sqrt(2)*1/sqrt(2)

1+c=sqrt(1+c^2)

(1+c)^2=(1+c^2)

2c=0, c=0

You might be interested in
The dollar bills below show the money that Sam has saved​
Novosadov [1.4K]

Answer:

Can I please have more details on what your question is?

Step-by-step explanation:

7 0
3 years ago
PLEASE HELP ASAP!! CORRECT ANSWER ONLY PLEASE!!<br><br> Simplify.<br><br> 3√-50
3241004551 [841]

3√(-50) = 3√(-1*50)=3i√(25*2) = 3*5i√2=15i√2

7 0
3 years ago
Which of the following is an integer?<br> 95.2<br> 73<br> 54<br> 41<br> -26
HACTEHA [7]

Answer:

95.2 is not an integer

and other are integers

7 0
3 years ago
7x + y = 13<br> 4x – 4y = -20
aalyn [17]

Answer: (x,y) = (1,6)

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
The equations y = 30x + 10 and y = –x2 + 150x + 10 model the daily sales of two car models, where x represents the number of day
yuradex [85]

Answer:

  day 0, day 120

Step-by-step explanation:

You want to find the value of x that makes both y-values be the same:

  y = y

  30x +10 = -x^2 +150x +10

  x^2-120x = 0 . . . . subtract the right side of the equation

  x(x -120) = 0 . . . . . factor

Values of x that make this true are x=0 and x=120.

The same number of each car was sold on day 0 and day 120.

7 0
3 years ago
Other questions:
  • Give an example of a repeating decimal where two digits repeat
    10·2 answers
  • In a class of 147 students, 95 are taking math(m), 75 are taking science (s), 52 are taking both math and science. What is the p
    14·1 answer
  • A can of tuna has a shape similar to the shape of a large water take the can of tuna has a diameter of 3 inches and a height of
    15·2 answers
  • Solve x + x + 2 + 2x = -2.
    5·1 answer
  • -4x + 7 for x=1. evaluate each expression for the given value of x.
    15·2 answers
  • Socially conscious investors screen out stocks of alcohol and tobacco makers, firms with poor environmental records, and compani
    9·1 answer
  • Help me please , I’ll really appreciate it
    14·1 answer
  • Which expression is equivalent to z2 + z + 4z3 + 4z2 ?
    12·1 answer
  • Please help me solve the problem. Thank you
    6·1 answer
  • May someone help me with this problem? Thank you!
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!