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aalyn [17]
3 years ago
13

Please help me i seriously have no idea what im doing

Mathematics
1 answer:
Karolina [17]3 years ago
5 0

Answer:

When time watching TV increases the grade decreases

Step-by-step explanation:

U just gotta look at the graph and find the relationship

I hope that this helps you out...

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Find the maxmium area of a rectangular plot of land which can be enclosed by rope of length 60 metres​
mario62 [17]

Answer:

225 m²

Step-by-step explanation:

If W is the width of the rectangle, and L is the length, then:

60 = 2W + 2L

A = WL

Use the first equation to solve for one of the variables:

30 = W + L

L = 30 − W

Substitute into the second equation:

A = W (30 − W)

A = 30W − W²

This is a parabola, so we can find the vertex using the formula x = -b/(2a).

W = -30 / (2 × -1)

W = 15

Or, we can use calculus:

dA/dW = 30 − 2W

0 = 30 − 2W

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Solving for L:

L = 30 − W

L = 15

So the maximum area is:

A = WL

A = (15)(15)

A = 225

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3 years ago
with vertices D(2, 5), E(6, 4), and F(3, 3), is reflected across the line y=x A student determined one of the vertices on the im
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The point (2, -5) would not be one of the correct vertices of the reflected shape.

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