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Alecsey [184]
2 years ago
11

1. Construct a square by using only a compass and straightedge. Explain your steps clearly.

Mathematics
1 answer:
Sedbober [7]2 years ago
7 0
This shows clear step by step to constructing a square.
https://mathbitsnotebook.com/Geometry/Constructions/CCconstructionSquare.html

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Calculate the coefficient of x4y18 in the expansion of (x − y)22
Oksana_A [137]
Binomial theorem:

(x-y)^n=\displaystyle\sum_{k=0}^n\binom nkx^k(-y)^{n-k}

The term with x^4y^{18} corresponds to n=18+4=22 and k=4 (or k=18, since \dbinom nk=\dbinom n{n-k}).

So, the coefficient of this term is

\dbinom{22}4(-1)^{18}=\dbinom{22}4=\dfrac{22!}{4!(22-4)!}=7315
4 0
3 years ago
The monthly gross receipts for the ABC Copy Creation house amounted to $20,834.34. Unfortunately the expenses amounted to $18,75
Kruka [31]

Answer:

the Profit for the month is $2,083.43

Step-by-step explanation:

The computation of the profit for the month is shown below:

Profit for the month is

= Monthly gross receipts - expenses

= $20,834.34 - $18,750.91

= $2,083.43

hence, the Profit for the month is $2,083.43

We simply applied the above formula so that the correct value could come

And, the same is to be considered

3 0
2 years ago
Simplify 2(x - 4) + 7(x + 2).
Sauron [17]

Answer:

9x+6

Step-by-step explanation:

2(x-4)= 2x-8

7(x+2)= 7x+14

2x-8+7x+14

clt

9x6

3 0
3 years ago
MATH is getting crazy can someone help me
WARRIOR [948]

Answer:

70 and (100%)(40)+(80)(40)

Step-by-step explanation:

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6 0
2 years ago
Read 2 more answers
Find the buying price of each of the following when 5% sales tax is added on the purchase of;
atroni [7]
1. 60 + 60*0.05 = 60 + 3 = 63;
2. 50 + 50*0.05 = 50 + 2.5 = 52.5;

7 0
3 years ago
Read 2 more answers
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