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natta225 [31]
4 years ago
5

Which equations show that the set of whole numbers is closed under multiplication?

Mathematics
1 answer:
spin [16.1K]4 years ago
4 0
D because it is the  most specific
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Suppose the block factory has only crates and stacks. How can it pack an order for 4,270
lys-0071 [83]
You would spilt the crates and stacks until you get 4,270
4 0
3 years ago
What is the lateral area of the pyramid?
Aleks04 [339]

We have two triangles with base 9ft and height 12.3ft and two triangles with base 11ft and height 11.9ft.

The formula of an area of a triangle:

A_\triangle=\dfrac{1}{2}bh

Triangle #1:

b = 9ft and h = 12.3ft. Substitute:

A_1=\dfrac{1}{2}(9)(12.3)=55.35ft^2

Triangle #2:

b = 11ft and h = 11.9ft. Substitute:

A_2=\dfrac{1}{2}(11)(11.9)=65.45ft^2

The Lateral Area:

L.A.=2A_1+2_A2\\\\L.A.=2(55.35)+2(65.45)=241.6\ ft^2

<h3>Answer: B. 241.6 ft².</h3>
6 0
3 years ago
Read 2 more answers
Decrease 150km in the ratio 2:5​
SIZIF [17.4K]

2:5 = 2/5

2/5 x 150

2 x 30= 60km

6 0
3 years ago
HELP PLEASE!!What method can you use to find the area of the composite figure. Check ALL that apply.
GenaCL600 [577]

Answer:

C

Step-by-step explanation:

The reason we can use this method is because we are given a composite figure with a house shape with one triangle on top. We can use the guidance of the dotted lines to make out that a rectangle can be used to find the figure. We can see that apart from the figure, there are two congruent triangles. To find the area we would do -

First find the missing height of the smaller triangles. We would use the pythagorean theorem to find that the missing height is√5

We could do 8(4) = 32 to find the area of the rectangle.

Then, we could do 2√5/2 to find one missing triangle. We could then add the triangles to find the measures of the combined triangles as 2√5. Then, we could do 32 - 2√5 to find the area as 27.5.

Hope this helps :)

8 0
4 years ago
therotreritcal probablity the theoretical probability that a pop song plays on your mp3 player is 0.45 there are 80 songs on you
sergeinik [125]
Multiply 80 by .45 to get the number that are pop. 
80 x 0.45 = 36 
That means 36 of the songs are pop. 
Hope this helps!
8 0
3 years ago
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