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
harkovskaia [24]
3 years ago
10

Which relation is a direct variation that contains the ordered pair (2, 7)?

Mathematics
1 answer:
Tasya [4]3 years ago
8 0
Lets write equation of a function:

y = kx + n

Direct variation in simple is equation of a line which has n=0 or in other words which y to x ratio is k.

First option gets 7=7 but it isnt direct variation because n is not equal to 0

third option is indeed correct. once we implement coordinates (2,7) we get 7=7

Answer is 
y = 7/2x
You might be interested in
If the length of the segment AB is 5, and BC is 9, and CD is three, find the difference between the furthest and shortest possib
S_A_V [24]

9514 1404 393

Answer:

  E.  16

Step-by-step explanation:

If the order of points on the line is ABCD, the distance between A and D is ...

  AB +BC +CD = 5 + 9 + 3 = 17

If the order of points on the line is BADC, the distance between A and D is ...

  BC -BA -DC = 9 -5 -3 = 1

Then the difference between the longest and shortest possible distances AD is ...

  17 - 1 = 16 . . . . matches choice E

5 0
3 years ago
If the arithmetic mean of the numbers 7, 14, 6, p, 8 and 14 is 10, find p.​
Jet001 [13]

Answer:

Step-by-step explanation:

Solution,

Here

Mean=10

N=6

Efx=7+14+6+p+8+14

=49+p

Now

Mean=Efx/N

or,10=49+p/6 ( Therefore,10 is multiplied to 6)

or,60=49+p

or,p=60-49

p=11

4 0
3 years ago
Help me Please I need it !
evablogger [386]

Answer:

38

Step-by-step explanation:

Given that,

x = -4

f(x)=x² - 4x +6

so,

f(-4)= (-4)² - 4 . (-4) +6

       =16 +16 +6

        = 38

4 0
4 years ago
Read 2 more answers
A company has a budget of $280,000 for computing equipment. Tablets cost $500 each, laptops cost $2000 each, and servers cost $5
Kazeer [188]

Answer:

The number of tablets  200

the number of laptops  40

and, the number of servers 20

Step-by-step explanation:

Let the number of tablets be 'x'

the number of laptops be 'y'

and, the number of servers be 'z'

According to the given question

Total budget = $280,000

Tablets cost = $500 each

laptops cost = $2000 each

servers cost = $5000 each

Thus,

500x + 2000y + 5000z = 280,000 ..............(1)

also,

x = 5y  ................(2)

and,

y = 2z  

or

z = \frac{\textup{y}}{\textup{2}}   ............(3)

substituting y from 2 and 3 in equation 1,  we get

(500 × 5y) + (2000 × y) + (5000 × \frac{\textup{y}}{\textup{2}} ) = 280,000

or

2500y + 2000y + 2500y = 280,000

or

7000y = 280,000

or

y = 40

substituting y in equation 2, we get

x = 5 × 40 = 200

substituting y in equation 3 we get

z = \frac{\textup{40}}{\textup{2}}

or

z = 20

hence,

the number of tablets  200

the number of laptops  40

and, the number of servers 20

7 0
4 years ago
Find the value of x.
barxatty [35]

Answer:

it will be very simple,when you understand the theory clerely, good luck!

7 0
3 years ago
Other questions:
  • Which student most accurately described Lisa's motion? (5 points)
    15·2 answers
  • Factor completely 25x2 − 144.
    6·2 answers
  • Solve by factoring:<br> 5t=t ^2
    13·1 answer
  • Match the following items. 1.) 2x + x + 4 = -17 2.) 3x + 4 = -17 3.) 3x = -21 4.) x = -7
    9·1 answer
  • Which is the solution to the inequality below?
    5·1 answer
  • PLEASE PLEASE I RLY NEED HELP ...... ....... . .. . . . . . . . . .... . . . Pick three Enlightenment thinkers and explain how t
    12·1 answer
  • Jonathan bought 2 1/8 pounds of candy from a candy store. 4/5 of his candy is strawberry flavored. How much of Jonathan's candy
    6·2 answers
  • Select all the expressions that are the result of decreasing x by 80%
    8·1 answer
  • Can someone help me with that pls​
    15·1 answer
  • You charge $2 per square yard to paint.Which equation can you solve to find the amount you will charge to paint a triangular wal
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!