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
Verdich [7]
3 years ago
11

Find the distance between (-2,6) ,(4,8)

Mathematics
1 answer:
Yuri [45]3 years ago
5 0

Answer:

\sqrt{40} OR 6.324555

Remember to round accordingly if not intended to be answered in square root form!

Step-by-step explanation:

Use the distance formula

You might be interested in
In a small town, the use of coal (W in tons/per
zimovet [89]

Answer:

i)W = 2500 / T

ii)  W = 500 Tons

iii) grad W(10°) = - 25î

iv) The formulation is not practical

Step-by-step explanation:

i)  Write an equation describing the use of coal

As use of coal is inversely proportional to the average monthly temperature

if  W is use of coal in tons/per month then

W(t)  =   k / T              where k is a constant of proportionality and T is the average temperature in degrees. We have to determine k from given conditions

k  =  ??   we know that when   T  =  25°    W = 100 tons  the by subtitution

W = k/T           100  =  k /25       k  =  2500 Tons*degree

Then final equation is:

W = 2500 / T

ii) Find the amount of coal when T = 5 degrees

W = 2500 / 5

W = 500 Tons

iii)

The inverse proportionality implies that W will decrease as T increase.

The vector gradient of W function is:

grad W  = DW(t)/dt î  

grad W  = - 2500/T² î

Wich agrees with the fact that W is decreasing.

And when T = 100°

grad W(10°) =  - 2500/ 100 î      ⇒  grad W(10°) = - 25î

iv) When T =  0  The quantity of coal tends to infinite and the previous formulation is not practical

5 0
3 years ago
Find f(-3) if f(x) = x2.
Vesna [10]

Answer:

f(-3) = 9

Step-by-step explanation:

Step 1: Define

f(-3) = x = -3

f(x) = x²

Step 2: Substitute and Evaluate

f(-3) = (-3)²

f(-3) = 9

7 0
3 years ago
Silvio wants to find the perimeter of quadrilateral ABCD. He begins by computing the length of side AB using the distance formul
saveliy_v [14]

Answer:

20

Step-by-step explanation:

AB = √(-4)² + (-3)²

AB = √ 16 + 9

AB = √ 25

AB = 5

AD = 4 ; DC = 4 ; BC = 7

Perimeter = 5 + 4 + 4 + 7 = 20 units

3 0
2 years ago
You put $2,000 into a tax-deferred retirement account this year. your marginal tax rate is 15%. how much did you save on this ye
viva [34]
I want to say 150 which is answer A


6 0
3 years ago
Read 2 more answers
An 80 confidence interval for is found to be (200, 240). what is the margin of error
Bogdan [553]

Answer:

It’s 20

Step-by-step explanation:

8 0
3 years ago
Other questions:
  • Which angles are corresponding angles? Select all tha apply.​
    8·2 answers
  • Kjnhbgvnfcbvhjnkml,;'.<br> ?}{:HJUbmgfcbdxvsc
    11·2 answers
  • Need answer ASAP <br> *MARKING BRAINLIEST
    14·1 answer
  • The decimal expansion of all rationals will be
    5·1 answer
  • Can someone plz help me
    14·2 answers
  • Sally is planning the school picnic and needs to decide what food vendor to
    7·2 answers
  • I have 7 red bows and 4 blur bows what is the ratio of red ribbons to blue ribbons PLEASE HELP ME
    13·2 answers
  • 1/3+1/8 answer fast help with a quation
    13·1 answer
  • SOMEONE PLEASE HELP ME WITH THIS ILL GIVE YOU BRAINLY IF YOU GET THE ANSWERS RIGHT I ASKED 3 TIME BUT NO ONE ANSWERS IT
    5·2 answers
  • Erin is comparing two rental car companies for an upcoming trip. The function
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!