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Evgesh-ka [11]
3 years ago
11

Nicole has a bag of round buttons. She measured the diameter of each button to the nearest eighth of an inch

Mathematics
1 answer:
Oliga [24]3 years ago
7 0

I don't think this is a question... could you elaborate a bit?

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Please help me with this question
sergejj [24]

Answer:

49π

Step-by-step explanation:

Circle area: πr^2

Since A to C is 14, and they're both in the center, A to B and B to C will both be 7 as a radius.

Since we know the radius, we can put it in the formula, πr^2.

We only need to solve for one circle, since both circles are the same. By solving the circle, we will put in 7 for the radius, giving us π7^2, which is 49π.

5 0
3 years ago
What causes an electric charge to jump from your hand to a metal object?
meriva

Answer:

Charges are both negative and positive as such negative charges are drawn to positive charges and the same with positive being drawn to negative

this can be explained because the human body has natural medals in that attract negative and positive charges just like metal.

8 0
3 years ago
A school has a population of 2500 students. The number of students is increasing at continuous growth rate of 4.5% each year. Wh
Lemur [1.5K]

Answer:

C

Step-by-step explanation:

6 0
2 years ago
A matched-pairs t-test is NOT an appropriate way to analyze data consisting of which of the following? Measurements of annual in
o-na [289]

Answer:

Step-by-step explanation:

A matched pair t test is one in which the set of data is divided into two sets of data and the test is done to test the difference between the pairs. Sometimes this is called paired t test.\

This is done normally where one group of sample or population can be paired with other group of sample /population.

Hence

A .Measurements of annual income for each twin for 100 randomly selected pairs of twins -- True

B. Measurements of annual income for both individuals in pairs formed by matching 100 people from State A and 100 people from State B based on level of education -- True

C. Measurements of annual income for both individuals in pairs formed by assigning 100 people to pairs at random -- True

D. Measurements of annual income recorded for both spouses of 100 randomly selected married couples  --False here we cannot say paired as these people are not grouped under the same conditions.

7 0
3 years ago
A volcano erupted
IgorC [24]
Percentage decrease = d
h1 = 2950
h2 = 2550

d/100 = (h2-h1)/h1

d/100 = (2950-2550)/2950
d=13.56
3 0
3 years ago
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