4 years ago

What is 2 tens and 7 tenths as a decimal

Mathematics

1 answer:

JulsSmile [24]4 years ago

7 0

Answer:

20.7

Step-by-step explanation:

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(x-1)^2+(2-x)^2-3(x-5)*(x-5)

Natali5045456 [20]

Answer:

$-x^2+24x-70$

Step-by-step explanation:

$(x-1)^2+(2-x)^2-3(x-5)*(x-5)\\=> (x - 1)^2 + (2 - x)^2 - 3(x - 5)^2\\=> x^2 - 2x + 1 + 4 - 4x + x^2 - 3(x - 5)^2\\=> x^2 - 2x + 5 - 4x + x^2 - 3(x - 5)^2\\=> x^2 - 6x + 5 + x^2 - 3(x - 5)^2\\=> 2x^2 - 6x+5 - 3(x - 5)^2\\=> 2x^2 - 6x+5 - 3(x^2 - 10x + 25)\\=> 2x^2 - 6x+5 - 3x^2+30x-75\\=> -x^2 - 6x + 5 + 30x - 75\\=> -x^2 + 24x + 5-75\\=> -x^2+24x-70$

Formula used =

$(a-b)^2 = a^2+ 2ab + b^2$

8 0

3 years ago

Eloise has 3/4 -pound of bird seeds. Each day, she feeds the birds in her yard 1/8 -pound of seeds. For how many days will she b

bulgar [2K]

Answer:

6 days

Step-by-step explanation:

First, we make common denominators:

3 *2 = 6

_ -> _

4 *2 = 8

and we get 6/8

6/8 divided by 1/8 will be 6 days

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2 years ago

5(x+3)=2x+3 what is x?

kvasek [131]

Answer:

操你媽，你怕我還是不告訴我。我希望你沒事。到今天為止。

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3 years ago

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What is the value of x, if the perimeter of the rectangle is 37?<br><br> This is the problem :

salantis [7]

Answer:

X= 3.7

Step-by-step explanation:

Perimeter of rectangle= 2(L+B)

37= 2(4X+X)

37= 2(5X)

37= 10X

37/10=X

3.7= X

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3 years ago

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the cost for a company to manufacture x bracelets can be represented by the function C(x). if C(256)=1536, then the cost to the

Stels [109]

For this case we have the following variables:
x: number of bracelets.
C: manufacturing cost
We have then:
C (256) = 1536
Thus,
The number of bracelets is:
256
The price is:
$ 1536
Answer:
the cost to the company is $ 1536 to manufacture 256 braclets

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3 years ago

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