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hichkok12 [17]
3 years ago
10

Find the median of following data round to the nearest hundredth. 12.5, 13.24, 7.89,22.45

Mathematics
1 answer:
NARA [144]3 years ago
5 0
The "median" of a set is just the middle value for an odd number of ordered elements or the average of the middle two values for an even number of ordered elements.  In this case you are four elements so it would be the average of the second and third terms...

median=(12.5+13.24)/2

median=12.87  (exactly, no rounding needed)
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Someone please explain (:
GaryK [48]

Answer:

a.) 1.38 seconds

b.) 17.59ft

Step-by-step explanation:

h(t) = -16t^2 + 22.08t + 6

if we were to graph this, the vertex of the function would be the point, which if we substituted into the function would give us the maximum height.

to find the vertex, since we are dealing with something called "quadratic form" ax^2+bx+c, we can use a formula to find the vertex

-b/2a

b=22.08

a=-16

-22.08/-16, we get 1.38 when the minuses cancel out. since our x is time, it will be 1.38 seconds

now since the vertex is 1.38, we can substitute 1.38 into the function to find the maximum height.

h(1.38)= -16(1.38)^2 + 22.08t + 6 -----> is maximum height.

approximately = 17.59ft -------> calculator used, and rounded to 2 significant figures.

for c the time can be equal to (69+sqrt(8511))/100, as the negative version would be incompatible since we are talking about time. or if you wanted a rounded decimal, approx 1.62 seconds.

7 0
3 years ago
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PLEASE HELP ME I NEED THIS RIGHT NOW
pav-90 [236]

Answer:

The answer is the second one

(-4, 0)


6 0
3 years ago
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A+3 1/4+5 2/9 what is the value of a, explain how you got the answer
larisa86 [58]

Answer:

a+305/36

Step-by-step explanation:

Convert

3

1

4

3

1

4

to an improper fraction.

a

+

13

4

+

5

2

9

a

+

13

4

+

5

2

9

Convert

5

2

9

5

2

9

to an improper fraction.

a

+

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47

9

a

+

13

4

+

47

9

To write

13

4

13

4

as a fraction with a common denominator, multiply by

9

9

9

9

.

a

+

13

4

⋅

9

9

+

47

9

a

+

13

4

⋅

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9

+

47

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To write

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9

47

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as a fraction with a common denominator, multiply by

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4

4

4

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a

+

13

4

⋅

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9

+

47

9

⋅

4

4

a

+

13

4

⋅

9

9

+

47

9

⋅

4

4

Write each expression with a common denominator of

36

36

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1

1

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a

+

13

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36

+

47

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4

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a

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13

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9

36

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47

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36

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a

+

13

⋅

9

+

47

⋅

4

36

a

+

13

⋅

9

+

47

⋅

4

36

Simplify the numerator.

a

+

305

36

a

+

305

36

3 0
3 years ago
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Which statement is true regarding the sides of a triangle
yulyashka [42]
The statement that is true regarding the sides of a triangle is the last one because the top and bottom have to be identical to each other and the sides have to be identical to each other.
6 0
2 years ago
. Twice a number decreased by eight. if the number N, the expression is
tester [92]

Answer:

2n-8

Step-by-step explanation:

twice n is 2n. decreased by 8 is the -8

5 0
3 years ago
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