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
Stells [14]
2 years ago
12

Find the angle 0 between the vectors.

Mathematics
1 answer:
Nikitich [7]2 years ago
6 0

Answer:

If θ is the angle between two vectors u and v, then cosθ = (u·v

Step-by-step explanation:

You might be interested in
Convert 0.875 inch to a fraction in simplest form. Click to select the correct answer.
inna [77]
This isnt the simplist but 875/1000 . Thats 875 over 1000.
8 0
3 years ago
If testing the claim that sigma subscript 1 superscript 2 baseline not equals sigma subscript 2 superscript 2σ21≠σ22​, what do w
12345 [234]

Answer:

The statistic for this system of hypothesis is given by:

F=\frac{s^2_1}{s^2_2}

If the statistic is equal to 1 then that means s^2_1 = s^2_2 and we don't have enough evidence to conclude that the two population variances and deviations are different.

Step-by-step explanation:

System of hypothesis

We want to test if the variation for a group1 is equal to another one 2, so the system of hypothesis are:

H0: \sigma^2_1 = \sigma^2_2

H1: \sigma^2_1 \neq \sigma^2_2

Calculate the statistic

The statistic for this system of hypothesis is given by:

F=\frac{s^2_1}{s^2_2}

If the statistic is equal to 1 then that means s^2_1 = s^2_2 and we don't have enough evidence to conclude that the two population variances and deviations are different.

6 0
3 years ago
(a) How many different three-letter initials can people have: , (b) How many different three-letter initials with none of the le
marissa [1.9K]

Answer:

Step-by-step explanation:

A) 26*26*26 =17576

B)26*25*24=15600

C)26*26=676

D) 26

5 0
2 years ago
Karen and James both had 30 stocking stuffer items on their shopping list. After black Friday shopping Karen had finished 35% of
mihalych1998 [28]

Answer: 7.5 items

Step-by-step explanation:

Both Karen and James had 30 stocking items.

Karen bought 35% of her items;

= 35% * 30

= 10.5 items

James has bought 60%;

= 60% * 30

= 18 items

= 18 - 10.5

= 7.5 items

6 0
3 years ago
How does a change in demand relate to a demand curve
marissa [1.9K]
A change in any one of the underlying factors that determine what quantity people are willing to buy at a given price will cause a shift in demand. Graphically, the new demand curve lies either to the right (an increase) or to the left (a decrease) of the original demand curve.
7 0
3 years ago
Other questions:
  • In a 45°-45°-90° triangle, the length of the hypotenuse is 11. Find the length of one of the legs.
    14·1 answer
  • 3.25+0.5x+1 1/3 + 5/6 x=5 11/12<br> what is x? <br> PLZ HELP DUE SOON
    15·2 answers
  • 40 feet to 260 feet ratio
    5·1 answer
  • Mr.Jenkins is buying paint to paint the garage wall. He needs to know the area of the wall in order to know how much how much pa
    8·2 answers
  • Solve the initial-value problem. x' + 2tx = 5t, x(0) = 8 x(t) =
    10·1 answer
  • I need help with number 15
    11·2 answers
  • Brielle made a color using 2 cups of white paint and 3
    7·1 answer
  • I need help with finding ABD and BDC
    13·1 answer
  • X2+ y2 - 8x - 12y + 27 = 0<br> Center:<br> Radius:
    10·2 answers
  • I
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!