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
bearhunter [10]
2 years ago
12

15- pls help!!!! math pls help answer other questions too

Mathematics
1 answer:
ddd [48]2 years ago
3 0

Answer:

A

Step-by-step explanation:

The projection of vector B on unit vector a is

(B•a)a

av(unit vector of v)= 1/√2(-1,1)

u•av= 1/√2 × (-5+7)= √2

(u•av)av= √2 × 1/√2(-1,1)= (-1,1)

You might be interested in
Garth estimated the height of the door to hiss classroom in meters. What is a reasonable estimate?
kobusy [5.1K]
It is just asking how many meters tall are doors usually at. Clearly 30 meters isn't reasonable so just say how tall most doors are in meters.
6 0
3 years ago
From a boat on the lake, the angle of elevation to the top of a cliff is 26°35'. If the base of the cliff is 85 feet from the bo
Trava [24]
Check the picture below

now, <span>26°35' is just 26bdegrees and 35 minutes

your calculator most likely will have a button [ </span><span>° ' " ]  to enter degrees and minutes and seconds

there are 60 minutes in 1 degree and 60 seconds in 1 minute

so.. you could also just convert the 35' to 35/60 degrees

so </span>\bf 26^o35'\implies 26+\frac{35}{60}\implies \cfrac{1595}{60}\iff \cfrac{319}{12}&#10;\\\\\\&#10;tan(26^o35')\iff tan\left[ \left( \cfrac{391}{12} \right)^o \right]

now, the angle is in degrees, thus, make sure your calculator is in Degree mode

5 0
3 years ago
Read 2 more answers
Help me plssssss im stuck I will give brainly
ozzi

Answer:

Kate.

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
2) which of these is a one-step equation?
Lady_Fox [76]
I think it would be B ?? Because it’s the shortest one ‍♀️
4 0
3 years ago
Read 2 more answers
A personal computer is bought for $2860. A down payment of $520 is made. The remainder of the cost is paid in 20 equal payments.
Zanzabum

Answer:

C.None of these

Step-by-step explanation:

atleast I think

3 0
3 years ago
Read 2 more answers
Other questions:
  • What is a good question to ask yourself when choosing a career path?
    13·1 answer
  • Write a linear inequality that represents the graph:
    9·1 answer
  • Mike purchased a round wall clock the clocks radius is 10m what is the circumference of the clock
    13·1 answer
  • James is looking into life insurance. He currently makes $50,000 a year and has two children, ages 15 and 11. How much coverage
    7·2 answers
  • Select Is a Function or is not a Function to correctly classify each relation.
    9·1 answer
  • Solve problem in photo 8th math
    9·2 answers
  • 13 added to the product of an integer and negative 7 is 62
    10·1 answer
  • Which situation could NOT represent a proportional relationship?
    14·1 answer
  • If m ZABC = 130° and mZDBC = 30°.<br> then mZABD = [ ? ]°
    9·1 answer
  • 4 divided by 3678 pls help
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!