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Molodets [167]
3 years ago
13

Alex has four books of different sizes which he wishes to place on a bookshelf. Unfortunately, the bookshelf has a conspicuous h

ole at one end through which only the smallest book can fall. If he wishes for all his books to stay stationary, in how many ways can he arrange his books?
Mathematics
1 answer:
vredina [299]3 years ago
6 0
18, you have 3 choices for the bottom because you can't use the small one, 3 choices for the next because you can now use the small one, 2 for the next and finally 1. You multiply all of them to get 18
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27.38 + 384 -<br> I don’t know the answer can I please have some help
Katen [24]

Answer:

411.38

Step-by-step explanation:

When you add 27.38 and 384 together, you get 411.38.

3 0
3 years ago
Can someone help me with solving volume equations?
Helen [10]

Answer:

For <em>2</em>, 30 cubic m., For <em>3</em>, 90 cubic cm., For <em>4</em>, 1000 cubic yards, for <em>5</em>, 27 cubic mm., For <em>6</em>, 120 cubic in.

Step-by-step explanation:

You can simply multiply all 3 sides to get the cubic volume B x <em>h </em>is the same as<em> l</em> x <em>w </em>x <em>h</em>

<em />

<em>ex. </em>Number 2, length 3, width 2, height 5

Base is<em> 2x3=6 </em>times <em>5 = 30 </em>or<em> 2 x 3 x 5=30</em>

3 0
3 years ago
Write the standard equation for the circle.
Sidana [21]

Answer:

the first one

Step-by-step explanation:

The equation of a circle in standard form is

(x - h)² + (y - k)² = r²

where (h, k) are the coordinates of the centre and r is the radius

here (h, k) = (10, - 6) and r = 6, hence

(x - 10)² + (y - (- 6))² = 6², that is

(x - 10)² + (y + 6)² = 36

5 0
3 years ago
What percent of 120 is 42​
poizon [28]

35%.

42/120 = 0.35.

0.35 X 100 = 35. That tells us 42 is 35% of 120.

6 0
3 years ago
The standard unit of measurement for length is the: meter mile yard centimeter
Degger [83]
The meter is the SI unit of measurement for length.
8 0
3 years ago
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