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
Musya8 [376]
3 years ago
13

The following set of ordered pairs represents a power inverse variation. Find the value of r given that k = 5.

Mathematics
1 answer:
pochemuha3 years ago
4 0

Answer:

r=2

Step-by-step explanation:

y = k x^r  is the formula for a direct variation

y = k x^ -r is the formula for a indirect variation

20= 5 (1/2)^ -r

Divide each side by 5

4 = (1/2) ^ -r

Rewriting

2^2 = 2^ -1 ^ -r

2^2 = 2 ^ r

The bases are the same so

2 =r

You might be interested in
If it is sunday when you cross the international date line while traveling westward, the next day is
mixas84 [53]
You cross the date line into Monday.

_____
The next day after Monday is Tuesday. (I find it difficult to tell the intent of the question.)
3 0
3 years ago
If you made 4 Burger in one min how much Burger would you make in 30 min?
mixer [17]

Answer:

120 burgers

Step-by-step explanation:

1 minute per four burgers

4 times 30 is 120

8 0
3 years ago
12 in<br> 5 in<br> 8 inWhat is the volume of the box?
morpeh [17]

Answer:

480in^3

Step-by-step explanation:

6 0
4 years ago
The midpoints of the hexagon are connected to form another hexagon, this pattern continues indefinitely. If the area of the 99th
jarptica [38.1K]

Answer:

  • (4/3)⁹⁸ units²

Step-by-step explanation:

  • <em>Regular hexagons have a property that cutting off the triangles obtained by joining the midpoints of consecutive sides leaves a hexagon of 3/4 of the area.</em>

This means the area of each hexagon inside out starting from the one with unit area is 4/3 of the previous one.

  • 99 ⇒ 1
  • 98 ⇒ 1*4/3
  • 97 ⇒ 1*(4/3)²
  • ...
  • 1 ⇒ (4/3)⁹⁹⁻¹

<u>The original hexagon has the area of:</u>

  • (4/3)⁹⁸ units²
7 0
3 years ago
Read 2 more answers
Complete the following.(a) Find the greatest common factor (GCF) of 63 and 36.хGCF = 0(b) Use the GCF to factor 63 -36.63 – 36 =
morpeh [17]
Answer:

a) The GCF of 63 and 36 is 9

b)

63-36=9\times(7-4)

Explanation:

a) To find the GCF of 63 and 36, we do the following:

Write 63 and 36 as follows:

\begin{gathered} 63=3\times3\times7 \\ 36=2\times2\times3\times3 \end{gathered}

The common factors are:

3\times3

Therefore, the Greatest Common Factor (GCF) is 9

b) To find the factor 63 - 36

63-36=9\times(7-4)

6 0
1 year ago
Other questions:
  • A translation moves point V(-2,3) to V’(2,7). Which are true statements about the translation?
    13·1 answer
  • 3 SUPER hard math questions HELP!
    10·1 answer
  • ASAP!! Please help me. I will not accept nonsense answers, but will mark as BRAINLIEST if you answer is correctly with solutions
    15·1 answer
  • Which of the following equations have one solutions? A. -6x-6=103x-103 B. -6x-6=-6x-103 C. 103x-6=103x-103 D. -103x-6=-6x-103
    13·2 answers
  • Work out the value of 4 lots of 10​
    8·2 answers
  • What is the volume of a cone with the given dimensions?<br> Diameter = 14 cm.; Height = 2 cm.
    10·1 answer
  • A trin ratio of greater than 1 is considered a __________.<br> a. bearish signal
    8·1 answer
  • Rewrite the following quadratic functions in intercept or factored form. Show your work.
    13·2 answers
  • The diagram shows a rectangle and a square.
    13·1 answer
  • What is growth mindset? Describe growth mindset.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!