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3 years ago

How many ways can you arrange seven different books on a shelf?

Mathematics

1 answer:

Vikki [24]3 years ago

4 0

Step-by-step explanation:

There are 7 books that can go in the first spot.

After a book has been placed in the first spot, there are 6 books left that can go in the second spot.

After that, there are 5 books that can go in the third spot.

So on and so forth.

So the number of ways is:

7×6×5×4×3×2×1 = 7! = 5040

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Which of these is not included in the set of rational numbers?

andriy [413]

Non-terminating decimals are not included in the set of rational numbers. This is because rational numbers consist of numbersthat are integers.

Answer: D) Al non-terminating decimals

Credit to: @Jimthompson5910

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3 years ago

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Can someone help me out I need help!

sleet_krkn [62]

Answer:

15x*45 i think

Step-by-step explanation:

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3 years ago

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A car has a windshield wiper on the driver's side that has total arm length of 10 inches. It rotates

son4ous [18]

Answer:

75.44 Square Inches

Step-by-step explanation:

The diagram of the problem is produced and attached.

To determine the area of the cleaned sector:

Let the radius of the larger sector be R

Let the radius of the smaller sector be r

Area of the larger sector $=\frac{\theta}{360}X\pi R^2$

Area of the smaller sector $=\frac{\theta}{360}X\pi r^2$

Area of shaded part =Area of the larger sector-Area of the smaller sector

$=\frac{\theta}{360}X\pi R^2-\frac{\theta}{360}X\pi r^2\\=\frac{\theta \pi}{360}X (R^2- r^2)$

From the diagram, R=10 Inch, r=10-7=3 Inch, $\theta=95^\circ$

Therefore, Area of the sector cleaned

$=\frac{95 \pi}{360}X (10^2- 3^2)\\=75.44$ Square Inches$

7 0

3 years ago

Show me how to solve step by step please

andrew-mc [135]

Answer:

188

Step-by-step explanation:

88 + 6= 94

94 + 94 = 188

188 divided by 2 = 94

94 - 6 = 88

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8 0

3 years ago

My daugher is trying to <br>Solve -7.8x=-1.56

Hunter-Best [27]

You would just have to isolate for x
so it would simply become
-1.56/-7.8
= 0.2

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3 years ago