Janna is making a prediction of the frequency of a key that is 12 keys from middle c. 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

Answers

Answer 1

Answer: The correct answer is:

Extrapolation, because a key that is 12 keys from middle c is outside the data set.

Explanation:

Interpolation is inserting an intermediate value into an existing series using estimation or calculations from nearby values. A key 12 keys from middle C is not in the data set involved, so this is not interpolation.

Extrapolation involves using a trend or pattern to estimate unknown values past the values we have. Since this key would be past our data set that we have, this would be extrapolation.

Answer 2

Answer: Among the choices the one that best describes her prediction is "extrapolation, because a key that is 12 keys from middle C is outside the data set".

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Answers

12 feet because that’s where graph lines up

Answer:

The answer is 12.

Explanation:

The bottom is seconds, and on the left side it is feet.

Look at the bottom and find the number 1.5.

Stop there on the line and move up until you hit the dark blue line.

It stops at 12. So that is your answer.

I hope this helps! Have a nice day!

Taking a discount of 50% off followed by a discount of 50% off results in a total discount of _____.

Answers

I believe that it is 75%, because if you take 20*.50= 10*.50=5= 75% of your original price. I think..

Answer:

75% is the total discount

Step-by-step explanation:

12 x Q greater than 12 less than 24

Answers

Q> 1 is the solution of the inequality.

What is Inequality?

a relationship between two expressions or values that are not equal to each other is called 'inequality.

12 x Q greater than 12 less than 24

12Q>24-12

We have to solve for Q

12Q>12

Twelve Q is greater than twelve

Divide both sides by 12

Q>1

Hence, Q> 1 is the solution of the inequality.

To learn more on Inequality click:

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I'm not sure if you're asking for a number in place of Q, but if so then:

Anything between 1 and 2.
12 * 1.5 = 18.

Simplify 3 square root of 10 end root plus 7 square root of 15 end root minus 6 square root of 10 end root minus 4 square root of 15.3 square root of 10 end root minus 3 square root of 15
3 square root of 15 end root minus 3 square root of 10
3 square root of 30 end root minus 3 square root of 20
3 square root of 20 end root minus 3 square root of 30

Answers

3√10 + 7√15 - 6√10 - 4√15
3√10 - 6√10 + 7√15 - 4√15
-3√10 + 3√15

The answer is B.

Answer:

Step-by-step explanation:

Use the Elimination method to solve the system of equations.

X+y=-3
X-y=13

Answers

x + y = -3
x - y = 13
    2x = 10
   2 2
      x = 5
x + y = -3
5 + y = -3
- 5    - 5
      y = -8
(x, y) = (5, -8)

For x
x+y=-3
x-y=13
---------
2x=10
x=5
For y
5+y=-3
y=-3-5
y=-8

There are 420 children in a school. 45% of the pupils are boys. How many boys are there?
How many girls are there?

Answers

$1 \% = (1)/(100) \n \n 45 \% =(45)/(100)=(9)/(20)\n \n total \ children : 420 \n \n boys : \n \n420 \cdot 45 \% = 420 \cdot (9)/(20)= 21\cdot 9 =189 \n \n girls : \ \n \n 420 -189 = 231$

total children = 420
boys = 45% of 420 = 189 boys
Girls = (100-45)% = 55% of 420 = 231 boys

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