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ICE Princess25 [194]
3 years ago
6

Can anybody help ?????????????????????

Mathematics
1 answer:
ycow [4]3 years ago
3 0

Answer:

i think its y= -3...ya im pretty sure

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Factorize x^2/16+xy+4y^2​
lisov135 [29]

Answer:

\frac{x^2}{16} +xy+4y^2 can be factored out as: (\frac{x}{4} +2\,y)^2

Step-by-step explanation:

Recall the formula for the perfect square of a binomial :

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

Now, let's try to identify the values of a and b in the given trinomial.

Notice that the first term and the last term are perfect squares:

\frac{x^2}{16} = (\frac{x}{4} )^2\\4y^2=(2y)^2

so, we can investigate what the middle term would be considering our a=\frac{x}{4}, and b=2y:

2\,a\,b=2\,(\frac{x}{4}) \,(2\,y)=x\,y

Therefore, the calculated middle term agrees with the given middle term, so we can conclude that this trinomial is the perfect square of the binomial:

(\frac{x}{4} +2\,y)^2

4 0
3 years ago
X+x+25=180 please help me
anygoal [31]
X+ 77.5 because if you subtract 25 from 180 you get 155. Then divide 155 by 2 and you get 77.5
4 0
3 years ago
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Question 9 The value of y varies directly with x. When y = 75, x= What is the value of y when x is 21? ​
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Answer:

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Step-by-step explanation:

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Help ASAP please<br> I am desperate
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I think the first one is 18 and I think the second one is the 3rd one

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