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
Alexxandr [17]
4 years ago
10

The following set of ordered pairs is an example of direct variation, find the constant ratio between the variables. (Hint: Find

k.)
(2, 4) (5, 10) (7, 14) (11, 22)
A. k=2
B. k=8
C. k=-2
D. k= 1/2
Mathematics
1 answer:
Serhud [2]4 years ago
6 0
Direct variation looks like
y=kx, so

k=y/x

<span>(2, 4)      k=4/2=2
(5, 10)    k=10/5=2
(7, 14)    k=14/7=2
(11, 22)  k=22/11=2

Answer:A.k=2.</span>
You might be interested in
What is y+2=-4(X-6) in Ax+By=C form
PSYCHO15rus [73]
Y+2=-4x+24
2=-4x-y+24
-22=-4x-y
7 0
3 years ago
(0,5) and (4,8) find the equation
-Dominant- [34]
Y’all need to find out on the graft but it was 0.5 will be on the last line
7 0
4 years ago
I am totally stuck on this problem please help
Nonamiya [84]
V solid = π * 5^{2} * 13 / 3 + π * 5^{2} * 2 = 3.14 * 25 *13 / 3 + 3.14 * 50 = 340.16 + 157 = 497.16 ≈ 497.20 cubic centimeters;
3 0
3 years ago
Find the volume of the given solid: Bounded by the cylinder y^2+z^2=4 and the planes x = 2y, x = 0, z = 0 in the first octant.
rodikova [14]

The solution would be like this for this specific problem:

<span>V = ∫ dV </span><span>
<span>= ∫0→2 ∫ 0→π/2 ∫ 0→ 2·r·sin(φ) [ r ] dzdφdr </span>
<span>= ∫0→2 ∫ 0→π/2 [ r·2·r·sin(φ) - r·0 ] dφdr </span>
<span>= ∫0→2 ∫ 0→π/2 [ 2·r²·sin(φ) ] dφdr </span>
<span>= ∫0→2 [ -2·r²·cos(π/2) + 2·r²·cos(0) ] dr </span>
<span>= ∫0→2 [ 2·r² ] dr </span>
<span>= (2/3)·2³ - (2/3)·0³ </span>
<span>= 16/3 </span></span>

So the volume of the given solid is 16/3. I am hoping that these answers have satisfied your query and it will be able to help you in your endeavors, and if you would like, feel free to ask another question.

3 0
3 years ago
I’ve tried everything.
klio [65]

Answer:

A

Step-by-step explanation:

tell me if im wrong

4 0
3 years ago
Other questions:
  • A parking garage charges $5.50 to park for 4 hours and $7.75 to park for 7 hours. If the cost is a linear function of the number
    15·2 answers
  • I am greater than 30 and less than 40 the sum of my digits is less than 5
    12·2 answers
  • The Andrésvhhhhuhcvc
    12·1 answer
  • What number should be added to both sides of the equation to complete the square?<br> X^2+126= 11
    9·1 answer
  • I wanna make sure of my answer so anyone can answer this
    15·1 answer
  • Pls help me with this math
    13·1 answer
  • What is the answer to this math question!?
    9·2 answers
  • The ratio of lime juice to orange juice in a drink is 3:8. How much orange juice is used in 50 L of the mixture?
    12·1 answer
  • Please help!!!!!!!!!!!!!!!
    9·1 answer
  • What inequality is graphed on the number line below?
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!