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3 years ago

Find n(A) for the set A = {300, 301, 302, ..., 3000}

Mathematics

1 answer:

sergiy2304 [10]3 years ago

5 0

Answer:

n(A) = 2701

Step-by-step explanation:

If we subtract 299 from the numbers in the set, we get the counting numbers ...

{1, 2, 3, ..., 2701}

The number of elements in the set is 2701:

n(A) = 2701

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nikitadnepr [17]

Answer:

(b) For each hour that Michelle drove, she traveled an additional 50 miles.

Step-by-step explanation:

Given

$(x_1,y_1) = (0,350)$ ---- start

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Required

Which is true

(a): Journey = 6 hours

This is false, because:

$x = x_2 - x_1$

$x = 7-0$

$x = 7$ ---- 7 hours

(b): The average rate is 50 miles per hour

To do this, we calculate the slope (m) using:

$m = \frac{y_2 -y_1}{x_2- x_1}$

$m = \frac{0 - 350}{7-0}$

$m = -\frac{350}{7}$

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This means that the rate is 50 miles driven in 1 hour.

(b) is correct

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4 years ago

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3 years ago

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kiruha [24]

Answer:

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3 years ago

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Solve for x in the diagram below. 3x 75° T =

leva [86]

Answer:
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DiKsa [7]

Answer:

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Step-by-step explanation:

From the graph in the attachment Y has coordinates:Y(3,2)

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$(x,y)\to (kx,ky)$

In this case we have $k=-\frac{1}{2}$

We substitute the coordinates and $k=-\frac{1}{2}$ to get:

$Y(3,2)\to Y'(-\frac{1}{2}*3,-\frac{1}{2}*2)$

This simplifies to:

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The first choice is correct.

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4 years ago