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makkiz [27]
2 years ago
15

Three integers have a mean of 7, a median of 6 and a range of 13. Find the three integers.

Mathematics
1 answer:
aalyn [17]2 years ago
6 0

Answer:

1, 6 and 14.

Step-by-step explanation:

6 is  the median (the middle number of the 3 numbers)

Then we need to know the first and last number

To get the mean, you  add all of the numbers up and divide that by how many numbers there are.

Since the mean is 7 and there are 3 numbers,  the sum of all three numbers is  21 because    (21/3=7)    

The  range of all the numbers is 13  The range is the difference between the largest and smallest number

The largest number subtracted by the smallest number should  be 13

 14-1=13      

1+6 +14 =21.

The three integers are, 1, 6 and 14.

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Find the area of a quarter circle with the radius of 6cm
Ronch [10]

Answer:

28.27cm³

Step-by-step explanation:

Area of a circle:

A=\pi r^2

First, find the area of a full circle with this given radius:

\rightarrow A=(3.14159)(6)^2\\\rightarrow A=(3.14159)(36)\\\rightarrow A=113.09734\\

Now, to find the radius of a quarter circle with the same radius, just divide by 4:

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8 0
2 years ago
Find the 8th Term for the Geometric Sequence for which a1 - 3 and r = -2
Firdavs [7]

Answer:

-384

Step-by-step explanation:

geometric sequence : every new element is generated by multiplying the previous element always with the same number r.

a(n) = a(n-1) * r

a(n) = a(1) * r^(n-1)

so, a(1) = 3, r = -2

a(8) = ?

a(8) = a(1) * r^7 = 3 * (-2)^7

a negative number to an uneven power is again a negative number.

so, (-2)^7 = -128

3 * -128 = -384 = a(8)

4 0
3 years ago
Can someone help please ?
vladimir2022 [97]

2. Because it is being reflected across the X axis, the X coordinate would change signs, but the Y coordinate would remain the same sign.

A(-6,-4) would become A'(6,-4)

B(-3,5) would become B'(3,5)

C(1,-1) would become C'(-1,-1)


The answer would be the third choice.


3. Reflected across the Y axis, the X would stay the same sign and the Y would change signs.

P(-2,-4) would become P'(-2,4)

Q(2,-5) would become Q'(2,5)

R(-1,-8) would become R'(-1,8)

The answer would be the second choice.

5 0
3 years ago
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