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
HACTEHA [7]
3 years ago
5

M is directly proportional to r2 When r=2, m=14 Work out the value of m when r=12

Mathematics
1 answer:
Genrish500 [490]3 years ago
8 0

we have M is durectly porpotional to r^2

so M=(k)r^2

and when r=2, m=14

so 14=(k)(2)^2

k=14/4 =7/2

so when r=12

m= (7/2)(12)^2 =(7/2)(144) = 504

You might be interested in
A group of 11 students have a mean average spelling test score of 7. Another student had a score of 8. What is the mean score of
Elena L [17]

Answer:

7.083

Step-by-step explanation:

7 0
2 years ago
If the probability of making a 3-point shot is 30%, how many made 3-pointers would you predict the player would make if they sho
Marianna [84]

Answer:

30 three-pointers

Step-by-step explanation:

if u need explanation, lmk and i'll type it in the comments to this question.

8 0
3 years ago
Find the length of the missing side
inn [45]
<h3>Answer:  9</h3>

================================================

Work Shown:

a = unknown  = leg #1

b = 12  = leg #2

c = 15 = hypotenuse

Plug those values into the pythagorean theorem and solve for 'a'

a^2 + b^2 = c^2

a^2 + (12)^2 = (15)^2  .... substitution

a^2 + 144 = 225

a^2 = 225 - 144  ... subtracting 144 from both sides

a^2 = 81

a = sqrt(81)  .... applying square root to both sides

a = 9

7 0
3 years ago
Pleasee help I'm really struggling ​
deff fn [24]
The cost of Tulip and Roses are 1500LL and 2500LL respectively

5 0
3 years ago
Find the mean of the given data set: (12, 2, 6, 3, 3, 19)
Savatey [412]

Answer:

Step-by-step explanation:

hope this helps you

4 0
2 years ago
Read 2 more answers
Other questions:
  • A dealership purchased a car and a truck and then sold them both. The purchasing cost of the truck was $8,000 greater than the p
    14·1 answer
  • 4 more to go please help me pass
    9·1 answer
  • Multiply using partial products 59x38
    6·2 answers
  • Please help!!!<br> A. 21890/990<br> B.21539/9990<br> C.215605/1010<br> D. 215605/1000
    12·1 answer
  • I need help with my algebra hw
    5·2 answers
  • kristen veterinary clinic is boarding 3 small dogs and 5 large dogs for the next 5 days. the dog food the clinic buys come in 5-
    11·1 answer
  • What is 1/4+(2×5) pls I need it today
    13·2 answers
  • A cone-shaped container has a height of 9 inches and diameter of 2.5 inches. It is filled with a liquid that is worth $2 per cub
    11·2 answers
  • What is the surface area of the triangular prism?
    6·2 answers
  • The half-life of a radioactive substance is the time required for half of a sample to undergo radioactive decay,or for the quant
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!