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

1 answer:

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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The youth group is going on a trip to the state fair. The trip costs $52. Included in that price in $11 for a concert ticket and

Cerrena [4.2K]

Answer:

52 = 2x + 11

x = 20.5

Step-by-step explanation:

52 is the total

the 2 passes cost the same price therefore have the same, like, term: x.

11 is the cost of one concert ticket.

mix them in a mixing bowl and done!

52 = 2x + 11

using linear equations do the equation to figure out x.

x = 20.5

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6 0

3 years ago

Read 2 more answers

Find all solutions to the equation sin2x+sinx-2cosx-1=0 in the interval [0, 2pi)

pshichka [43]

The solutions appear to be {π/2, 2π/3, 4π/3}.

_____
Replacing sin(2x) with 2sin(x)cos(x), you have
2sin(x)cos(x) +sin(x) -2cos(x) -1 = 0
sin(x)(2cos(x) +1) -(2cos(x) +1) = 0 . . . . factor by grouping
(sin(x) -1)(2cos(x) +1) = 0

This has solutions
sin(x) = 1
x = π/2
and
2cos(x) = -1
cos(x) = -1/2
x = {2π/3, 4π/3}