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
Reptile [31]
3 years ago
8

A musical instrument has a pitch of 220 hertz when the wavelength is 3 feet. When the wavelength is 4 feet, the pitch is 165 her

tz. What is the type of variation between pitch and wavelength? What is the pitch when the wavelength is 5 feet? hertz
Mathematics
1 answer:
earnstyle [38]3 years ago
4 0
We know that
Inverse Variation is a<span> relationship between two variables in which the product is a constant
so
let
x------> a pitch of a musical instrument
y------> </span><span>the wavelength
x*y=k

find the value of k

for x=</span><span>220 hertz   y=3 ft
</span><span>x*y=k
220*3=k
k=660

</span>for x=165 hertz   y=4 ft
x*y=k
165*4=660
k=660<span>

the answer part a) is
</span><span>the type of variation between pitch and wavelength is an inverse variation
</span>
part b) <span>What is the pitch when the wavelength is 5 feet?
x=?
y=5 ft
k=660
x*y=k------> solve for x
x=k/y----------> x=660/5-----> x=132 hertz

the answer Part b) is
132 hertz</span>
You might be interested in
Please help me IDk this at all!!!!
jasenka [17]
It would help if you find common denominator... 12
so 1/3 times 4 both the numerator and denominator
4/12

and 3/4 times by 3 both the numerator and denominator
9/12

the recipe calls for 4/12 cup of oil and you have 9/12

two batches would be 8/12 cups of oil, you have 9/12 that is just enough for the recipe for two batches...

now to simplify it again, 1/3 + 1/3 = 2/3 and 2/3 is less than 3/4 
the answer would be the upper right
3 0
3 years ago
Read 2 more answers
write a point-slope equation for the line that passes through the point (6,8) and is parallel to the line given by y=-5x+4
VashaNatasha [74]

Answer:

  y -8 = -5(x -6)

Step-by-step explanation:

The point-slope form of the equation for a line is generally written ...

  y -k = m(x -h)

for slope m and point (h, k).

The slope of your parallel line is the same as the slope of the reference line, -5. So your equation is ...

  y -8 = -5(x -6)

3 0
3 years ago
Given data below, what is the mean absolute deviation? <br> 58,88,40,60,72,66,80,48
JulijaS [17]
Mean is 64 and the mean absolute deviation is 12.5
3 0
3 years ago
Use complete sentences to describe why Set A = { X | X is an even whole number between 0 and 2} = No solution/or empty set.
Inessa05 [86]
A = {1}
(conjunto unitário)
5 0
3 years ago
Jade has a budget of $200
stealth61 [152]
And? It’s there a full question?
8 0
3 years ago
Other questions:
  • What is five times five?
    15·2 answers
  • The product of three numbers is -216, but their sum is -18. <br><br> I’ll give 18 points!!!!
    5·1 answer
  • The Takana family just bought 4 crates of eggs, and each crate had 18 eggs. The family already had 9 eggs in their refrigerator.
    6·1 answer
  • PLZ HURRY IT'S URGENT!!!!!!!!
    8·2 answers
  • Perry surveyed 60 students at her school and found that 0.45 of the students she surveyed said their favorite class is math. Ano
    15·1 answer
  • For f(x)=4x+1 and g(x)=(x^2)-5, find (f+g)(x).
    12·1 answer
  • Which set of numbers could represent the lengths of the sides of a right triangle?
    8·2 answers
  • Plz helps so i can pass
    6·1 answer
  • Which similarly proves the two triangles are similar?
    6·1 answer
  • Please help me on this problem
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!