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]
2 years ago
10

By which matrix should you multiply vector [1 3] to rotate it 180°?

Mathematics
1 answer:
Ksivusya [100]2 years ago
4 0

Answer:

B

Step-by-step explanation:

Rotation 180° is accomplished by negating both the x- and y-coordinates. That is, you multiply each of them by -1. You want the opposite of the identity matrix, so matrix B.

You might be interested in
Erica sells bracelets for $2 each. The supplies to make each bracelet costs her $0.75. Let “n” represent the number of bracelet
AysviL [449]

Answer:  1.25n

=======================================================

Explanation:

Erica sells bracelets for $2 each. If she makes and sells n of them, then she gets 2n dollars of revenue.

Making n bracelets cost her a total of 0.75n dollars because each bracelet costs 0.75 dollars, or 75 cents.

Subtract the revenue and cost to get the profit

profit = revenue - cost

profit = 2n - 0.75n

profit = (2-0.75)n

profit = 1.25n

The expression 1.25n means that she earns $1.25 in profit per bracelet sold.

3 0
3 years ago
For each system of equations, drag the true statement about its solution set to the box
iVinArrow [24]
<h2 /><h2>1</h2>

ONE SOLUTION

  • 6x-3=2x+1 has one solution

INFINITELY MANY SOLUTION

  • 6x-3 is a multiple of 2x+1

5 0
2 years ago
Anyone know the answer?​
Aleksandr-060686 [28]
I’m pretty sure it’s d but i’m not 100%
5 0
3 years ago
The bus will leave in 7 minutes. what time will it leave?
hjlf

Answer:

1:52

Step-by-step explanation:

The clock reads 1:45 so simply add 7 minutes to that

3 0
1 year ago
Read 2 more answers
Casey is completing an experiment that requires 300 mL of potassium chloride (KCl) at a concentration of 0.2 M. But Casey's lab
gulaghasi [49]
What you first need to do is make an equation. Then plug that equation into photomath and you get your answer


3 0
3 years ago
Other questions:
  • A spherical paintball measures 1.5 centimeters in diameter. Approximately how much paint is in it?
    13·1 answer
  • Solve the equation. Then check your solution. x+19=5
    6·1 answer
  • Kaitlin is on her way home in her car. She has driven 30 miles so far, which is two-thirds of the way home. What is the total le
    15·2 answers
  • Use propeerties to find the sum or product
    13·1 answer
  • If eight out of every thirteen trick-or-treaters that came to your house last Halloween were dressed as knights, what proportion
    15·1 answer
  • Multiply (2 − 7i)(9 + 5i). <br> A) 53-53i<br> B) -17-53i<br> C) 18-35i^2<br> D) 18-53i-36i^2
    6·1 answer
  • Uhm help please no links -^-
    6·2 answers
  • Select the three situations that model a sum of zero.
    9·1 answer
  • Which is grater .856 or .8561
    13·2 answers
  • Select the correct answer. Each statement describes a transformation of the graph of y = x. Which statement correctly describes
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!