Janna is making a prediction of the frequency of a key that is 12 keys from middle C. A 2-column table with 5 rows. The first column is labeled number of keys above middle c with entries 0, 1, 2, 4, 8. The second column is labeled frequency (hertz) with entries 277.18, 293.66, 311.13, 249.23, 440.00.
Which best describes her prediction?

interpolation, because a key that is 12 keys from middle C is within the data set
interpolation, because a key that is 12 keys from middle C is outside the data set
extrapolation, because a key that is 12 keys from middle C is within the data set
extrapolation, because a key that is 12 keys from middle C is outside the data set

r(0,90)(x,y) . t(-5,0)

last option

step-by-step explanation:

∆def to ∆d"e"f"

- rotate 90 counterclockwise degrees

- then translated 5 to the left (x --> x - 5)

answer is the last option

113.1

step-by-step explanation:

v=4

3πr3=4

3·π·33≈113.09734

perimeter = 10 +  √10  units

explanation:

first, we will need to get the length of each line using the distance formula which is as follows:

distance = 

1- length of ab:

ab =   = 5 units

2- length of ac

length of ac is the same as ab = 5 units

3- length of bc:

bc =   =  √10  units

now, we can get the perimeter by adding the side lengths as follows:

perimeter = 5 + 5 +  √10

perimeter = 10 +  √10  units

hope this : )

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1. 37

2. 22

3. 44

4. 66

step-by-step explanation: