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Nikitich [7]
3 years ago
13

Which expression is equivalent to 9x – 2x2 + 4x – x?

Mathematics
1 answer:
Artyom0805 [142]3 years ago
5 0

Answer:

-2x^2+12x

Step-by-step explanation:

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The composite figure is made up of a triangular prism and a pyramid. The two solids have congruent bases.
kolezko [41]
The correct question is
The composite figure is made up of a triangular prism and a pyramid. The two solids have congruent bases. What is the volume of the composite figure<span>?
</span>
the complete question in the attached figure

we know that
[volume of a cone]=[area of the base]*h/3
[area of the base]=22*10/2-------> 110 units²
h=19.5 units
[volume of a cone]=[110]*19.5/3------> 715 units³

[volume of a triangular prism]=[area of the base]*h
[area of the base]=110 units²
h=25 units
[volume of a a triangular prism]=[110]*25------------> 2750 units³

[volume of a the composite figure]=[volume of a cone]+[volume of a <span>a triangular prism]

</span>[volume of a the composite figure]=[715]+[2750]-------> 3465 units³

the answer is
The volume of a the composite figure is 3465 units³

4 0
3 years ago
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Sam takes a taxi in Chicago. The taxi charges $0.75 per mile and a flat fee of $1.60. If he has at most 10 dollars
Anni [7]
10 - 1.60= 8.40
8.40/0.75=11.2 miles
5 0
3 years ago
How are average I.Q.s related to normal distributions?
Flauer [41]

In USA the average I.Q. is 98 while the top one average I.Q. country is Hong Kong.

But the I.Q. distribution is given by a polinomial graph, few people with extremely low I.Q. 40~70, a lot between 70~100, some between 100~120, few between 120~140 and extremely low 140+

8 0
3 years ago
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4, 12, 20 what the common diffrence?? help im timed
sdas [7]
It goes by 8!

If u see, 4 + 8= 12 +(another) 8 = 20! It skips 8 every time!

If u were to continue it, 20 + 8 = 28 and so on!
The difference is the sum of the number totalled.

Hope this helps!
4 0
3 years ago
What is the difference between dilations and the other transformations?
skelet666 [1.2K]
All these appear to be physic phenomena because they do not change the composition of the matter. 

<span>However, while rotations, translations and reflexions do not alter the volume of the matter, dilation does increase the volume. </span>

<span>Dilation, by definition, is an enlargement of the matter and directly opposed to contraction. For example, heat dilates the matter, while colds contract it. The exception to this is that when water becomes ice due to cold, it increases in volume.</span>
3 0
3 years ago
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