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
WITCHER [35]
3 years ago
7

Q7 Q7.) Find the unit vector in the same direction as v.

Mathematics
2 answers:
igor_vitrenko [27]3 years ago
7 0
Use Pythagorean theorem:

9i-j = sqrt (9^2 - 1^2) = sqrt(81-1) = sqrt80

now divide both terms in V by that:

u = 9/sqrt(80)i - 1/sqrt(80)j

see attached picture: 

Tju [1.3M]3 years ago
6 0
|v| = sqrt(9^2+(-1)^2)=sqrt(82)

u = v/|v| = 9/sqrt(82) i - 1/sqrt(82) j

You might be interested in
Find the volume of the cylinder.
postnew [5]

Answer:

V =128 pi

Step-by-step explanation:

The volume of the cylinder is given by

V = pi r^ h

V = pi 4^2 *8

V = pi *16*8

V =128 pi

3 0
3 years ago
the law which states that the ratio of the sine of an angle to the side opposite it is constant is the
Valentin [98]

Answer:

The law which states that the ratio of the sine of an angle to the side opposite it is constant is the <u>Law of Sines</u>.

Step-by-step explanation:

The Law of Sines states that in any given triangle, the ratio of the length of any side to the sine of its opposite angle is the same for all three sides of the triangle and has a constant value.

4 0
3 years ago
To convert 1.3 miles into inches which two ratios could you multiply by ?
guapka [62]
5,280 ft 1 mile and 1 foot ,12 inches 1 foot
8 0
4 years ago
A company sells widgets. The amount of profit, y, made by the company, is related to the selling price of each widget, x, by the
RUDIKE [14]

9514 1404 393

Answer:

  $1571

Step-by-step explanation:

If we assume that y is profit in dollars, the maximum value of y is revealed by a graph to be ...

  ymax = $1571

The maximum profit the company can make is $1571 at a selling price of $45 each.

_____

The function can be written in vertex form as ...

  y = -(x^2 -90x) -454

  y = -(x^2 -90x +45^2) -454 +45^2

  y = -(x -45)^2 +1571

Because the leading coefficient is negative, we know this vertex represents a maximum. (x, y) = (45, 1571) at the vertex. Maximum profit is $1571.

8 0
3 years ago
Norah knows that the diameter of a circle is 13 meters. How would you tell her to find the circumference?
Blizzard [7]
You times the diameter by Pi (3.14) 
so in this case, you would times 13 by 3.14 = 40.82 m
So the circumference is 40.82m<span />
3 0
4 years ago
Other questions:
  • How do I answer these questions ? Pls help .
    15·1 answer
  • Write the equation of the line through (4,-4) and is parallel to the line 3x-4y=16
    15·1 answer
  • The energy expended by a bird per day, E, depends on the time spent foraging for food per day, F hours. Foraging for a shorter t
    10·1 answer
  • Solve triangle ABC with m
    8·1 answer
  • Large Number Calculation
    10·1 answer
  • Need Help ASAP!!!
    5·2 answers
  • Is 3/6 and 1/2 equivalent
    8·2 answers
  • 15 points! No messing around and joking or I will report you. And I dont want to do that!
    6·1 answer
  • Please Answer This Ixl Asap!
    8·1 answer
  • Study the illustration. Write the ratio
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!