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Alex Ar [27]
3 years ago
14

Michelle went on a hike she started at 6:45am and returned at 3:28pm. How long did she hike

Mathematics
2 answers:
solong [7]3 years ago
7 0
9 hours and 15 minutes
BabaBlast [244]3 years ago
5 0
9 hours and 15 minutes
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8.3+5.2

Step-by-step explanation:

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What does a standard deviation of 0 indicates ?
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What does a standard deviation of 0 indicates 0.

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Is line 1 (1,5) (3,-2) and like 2 (-3,2) (4,0) perpendicular of parallel?
Lera25 [3.4K]
  • Slope Formula: \frac{y_2-y_1}{x_2-x_1}

So remember that <u>perpendicular lines have slopes that are negative reciprocals to each other</u> and <u>parallel lines have the same slope.</u> To find out if they are either parallel or perpendicular, plug the pair of points into the slope formula to find their slopes:

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7 0
3 years ago
An arithmetic sequence "a" starts with 84, 77 define "a" recursively
sweet [91]

Answer:

First, let's define an arithmetic sequence:

In an arithmetic sequence, the difference between any two consecutive terms is always the same.

Then we can write it in a general way as:

aₙ = a₁ + (n - 1)*d

where:

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d is the constant difference between two consecutive terms.

a₁ is the initial term of our sequence.

Now in this case we know that the first terms of our sequence are:

84, 77, ...

Then we know the initial term of our sequence:

a₁ = 84.

And the value of d can be calculated as:

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Then the general way of writing this sequence is:

aₙ = 84 + (n - 1)*(-7)

And the recursion relation is:

aₙ = aₙ₋₁ - 7

So for the n-th term, we must subtract 7 of the previous term.

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3 years ago
HELP PLEASE! THIS IS A HUGE TEST! <br><br> will try to give brainlyy!
Ugo [173]

Answer:

i believe its b

Step-by-step explanation:

bbbbbbbb........b

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2 years ago
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