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Mazyrski [523]
3 years ago
8

Lydia recorded the grade-level and instrument of everyone in the middle school School of Rock below.

Mathematics
1 answer:
neonofarm [45]3 years ago
6 0

Answer:

31/42

Step-by-step explanation:

there are 42 students in 8th grade

31 dont play keyboard so 31/42 = 73.8% chance

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Which of the following are incorrect expressions for slope?
vfiekz [6]

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Option B and C are correct.

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Step-by-step explanation:

Slope is defined as the change in the dependent variable  relative to the change in the dependent variable

or the ratio of the horizontal changes to vertical changes between any two points on the graph of the line.

The vertical changes between any two points is rise

The horizontal changes between any two points is run.

Formula for slope is given by:

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or we can write this as:

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Δx = x_2-x_1

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Therefore, the expression which are incorrect for slope  are;

\frac{x_2-x_1}{y_2-y_1}

\frac{run}{rise}

8 0
3 years ago
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Omar classroom has 2 closets each closet has 3 shelves there are 5 backpacks on each shelf’s
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