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
Troyanec [42]
3 years ago
8

Determine whether the vectors u and v are parallel, orthogonal, or neither. u = <6, -2>, v = <8, 24>

Mathematics
1 answer:
ratelena [41]3 years ago
4 0
We'll check if they're orthogonal:
u*v=0
(6,-2)*(8,24)=0
6*8+(-2)*24=0
48-48=0
0=0
they are orthogonal vectors
You might be interested in
Marguerite is building a box from strips of wood. She needs 78 pieces of wood that are each 29 centimeters long. The wood comes
Vsevolod [243]
120 because you needed to add them up
4 0
2 years ago
Verify the identity by transforming the left-hand side into the right-hand side.
qaws [65]
<span>(1 + cos² 3θ) / (sin² 3θ) = 2 csc² 3θ - 1

Starting with the left:  Note that  cos²θ + </span><span>sin²θ = 1.
In the same way:    </span><span>cos²3θ + <span>sin²3θ = 1
</span></span>Therefore                cos²3θ  = 1 - <span>sin²3θ
</span> From the top:  (1 + cos² 3θ) = 1 + 1 - sin²3θ = 2 - <span>sin²3θ
</span>
(1 + cos² 3θ) / (sin² 3θ) = (<span>2 - sin²3θ) / (sin² 3θ) = 2/</span><span>sin² 3θ - </span><span>sin²3θ/</span>sin²3θ

=  2/<span>sin² 3θ - 1;        But 1/</span><span>sinθ = csc</span><span>θ,  Similarly  </span>1/sin3θ = csc3θ

= 2 *(1/sin<span>3θ)²  - 1</span>
= 2csc²3θ  - 1.        Therefore  LHS = RHS.  QED.

8 0
3 years ago
Zero is a solution for which inequality?
Helen [10]

Step-by-step explanation:

0 is right in the middle of all negative and all positive numbers.

0 is therefore larger than any negative number and smaller than any positive number.

and 0×n = 0, always, no matter what n is.

-0 = +0 = 0.

so, of course, only

4.1m > -16.4

is correct.

0 is not greater than 16.4.

0 is not smaller than -16.4.

8 0
2 years ago
What is the equation of the line that passes through the point -1, -3 and has a slope of -5
Nastasia [14]

Answer: y=-5x-8

Step-by-step explanation:

8 0
3 years ago
A transformation of ΔDEF results in ΔD'E'F'.
Leya [2.2K]
<h3>Answer:</h3>

The transformation is a rotation.

<h3>Step-by-step explanation:</h3>

The incorrect answers can be ruled out as follows:

  • dilation would change the size, but not the directions of the lines
  • reflection would change the DEF ordering from clockwise to counterclockwise
  • translation would move the figure, but not change the directions of the lines

The image is the same size as the original. Each of the sides of the triangle is moved through the same angle. The transformation is a rotataion.

The center of rotation can be found as the point of intersection of the perpendicular bisectors of DD', EE' and FF'

5 0
2 years ago
Read 2 more answers
Other questions:
  • The graph of an exponential function passes through (2,−32) and (3,−64). Find the exponential function that describes the graph.
    8·1 answer
  • What is the mapping rule for a 45 degree rotation?
    11·1 answer
  • Solve for a in the diagram below.
    13·2 answers
  • I need help with letter B, please!
    14·1 answer
  • HELP FAST PLEASE!!!!!!!!!!!!!!!!!!
    14·1 answer
  • A football team gained 9 yards on one play and then lost 22 yards on the next and
    8·1 answer
  • A dressmaker has 75 yards of lace . It takes 1 1/2 yards of lace to decorate one pocket . How many pockets can she decorate with
    9·1 answer
  • A bike was originally $102 and is on sale for 30% off. what is the discounted priice
    10·2 answers
  • There are 12 chocolate chip cookies in an assortment of 48 cookies. What percent of the cookies are chocolate chip?
    9·2 answers
  • Help me please!!!<br><br> M<br> What is m
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!