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3 years ago

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Mathematics

1 answer:

Sveta_85 [38]3 years ago

8 0

Something happened when you copy and pasted the question, was it important to the question?

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Please help me with expansion and factorization of quadratic expressions.<br> a) -4x^2 + 2x^2

Flura [38]

Answer:-2x^2(2-1)

Step-by-step explanation:

-4x^2 + 2x^2=-2x^2(2 - 1)

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4 years ago

Is 4.3 repeating bigger than 4.3?

Marianna [84]

Yes it would be since 4.3 repeating has tons of 3's repeating.

8 0

3 years ago

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Can someone do this

raketka [301]

Answer:

Step-by-step explanation:

m= (y-y1)/(x-x1)

Points are (3, -2) and (6, 4)

m= (-2-4)/(3-6)= -6/-3= 2

m=2 to replace ? mark

3 0

3 years ago

A rectangular garden is extended 4% on the long sides and 8% on the short sides. To the nearest hundredth of a percent, by what

liq [111]

Answer: 12.32%

Step-by-step explanation:

1. $x$ is the original long side and $y$ is the original short side.

2. The area of the original rectangle is $xy$ .

3. The rectangle is extended 4% on the long sides and 8% on the short sides. therefore, the new long side is:

$\frac{104}{100}x=\frac{26}{25}x$

4. And the new short side is:

$\frac{108}{100}y=\frac{27}{25}y$

5. The new area is:

$(\frac{26}{25}x)(\frac{27}{25}y)=\frac{702}{625}xy$

6. The percentage of increase is calculated by substracting the new area and the original area:

$\frac{702}{625}xy-xy=0.1232xy$

7. The result is:

(0.1232)(100)=12.32%

3 0

3 years ago

What is the answer to +1 + -4=

ahrayia [7]

The answer is -3.

If we add positive one/+1 to negative four/-4, we subtract +1 from -4, giving us -3.

8 0

3 years ago

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