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Troyanec [42]
3 years ago
15

PLS HELP ME UNDERSTAND THIS NICE PPL B-)

Mathematics
1 answer:
aleksandrvk [35]3 years ago
3 0

Answer:

-7(2x+ -3y+0.7)

Step-by-step explanation:

Hope this helps and pls mark me brainliest:)

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A rectangle has a 15 to 20. Identify the ratio.
marishachu [46]

Answer:

15:20

15/20

15 to 20

there are 3 types of ways and there you go.

Step-by-step explanation:

have a great day ! :)

5 0
3 years ago
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How do i prove 2sec^2x-2sec^2xsin^2-sin^2x-cos^2x=1
kramer
2\sec^2x-2\sec^2x\sin^2x-\sin^2x-\cos^2x=2\sec^2x(1-\sin^2x)-(\sin^2x+\cos^2x)

Since \sin^2x+\cos^2x=1, you have

2\sec^2x(1-\sin^2x)-(\sin^2x+\cos^2x)=2\sec^2x\cos^2x-1

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6 0
3 years ago
How can numbers be expressed, ordered and compared?
USPshnik [31]
Numbers can be expressed, ordered and compared by a lot of mathematical principles, properties, models and paradigms. There are different properties of numbers to associate, group and distribute numbers. For example commutative property of addition, 1 + 2 = 3 can be 3 = 1 + 2. Moreover, numbers can be expressed by mathematical form, thus 100 wherein 1 is in the place order of hundreds. And so on… other examples can be mathematical symbols or inequality to compare numbers. For example, 1 > 2. One is less than 2.



6 0
3 years ago
The Great Pyramid in Giza, Egypt, is a square pyramid. The dimensions of the pyramid at the time of its completion are shown in
Ann [662]
Hey there look like you need some help.
If I give you the correct answer mark me brainleist

First you would find the area of the square:        230*230= 52,900Next you would find the area of one on the triangles:        230*187=43,010 * 1/2=  21,505Then you would multiply the area of the one triangle by four:       21,505*4= 86,020Finally, you would add the area of the square to the combined area of the triangles:        86,020+ 52,900=138,920

7 0
3 years ago
The diameter of a circle is 14 m. Find its area in terms of \piπ.
Lena [83]
43.96 is what i got! im sorry if i got it wrong
6 0
3 years ago
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