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8090 [49]
2 years ago
14

pls help Using the pattern learned for the square of a binomial, square (3x-5y^2) Explain the pattern.

Mathematics
1 answer:
Bess [88]2 years ago
6 0

Step-by-step explanation:

The binomial square product states that

(x  -  y) {}^{2}  = x {}^{2}   -  2xy +  {y}^{2}

So this means

If there a coefficient in front of x are y, we multiple them as well.

In terms, this means that a binomial squared is equal to

The first term squared + the two terms multiplied together and by 2 + the last term squared.

(3x - 5y {}^{2} ) {}^{2}  = 9 {x}^{2}  - 30xy {}^{2}  + 25 {y}^{4}

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2 years ago
PLEASE PLEASE PLEASE PLEASE PLEASE PLEASE HELP ME!!!!!!!! THATS ALL. I WILL GIVE POINTS, FAN, MEDAL. PLEASE, I AM SO BAD AT MATH
aleksandrvk [35]
"measures to the nearest tenth of a pound" tell us to round each of the weights listed to the nearest tenth (since the unit is already pounds, no conversion is needed). What this means is if the second number to the right of the decimal is 5 or greater, then we add 1 to the first number to the right of the decimal (and replace the second number with a zero). With all this said, it's much easier to show you, rather than to try to explain it. :D

4.35 is rounded up to 4.4 because the second number to the right of the decimal is 5.
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The question is asking what the heaviest reading will be, so from the whole list above we pick the highest number which is 4.5 pounds. Notice how the answer is not Packet C, or 4.48 pounds, but 4.5 pounds. It is asking for the reading, not the packet, nor the weight. Hope this helps. 
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3 years ago
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Which of the following is a true polynomial identity?
Ira Lisetskai [31]

Answer:

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Step-by-step explanation:

You can use FOIL or the distributive property to expand the product of binomials, Then collect terms and factor out the common factor.

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Step-by-step explanation:

I'll assume the 1.4 goals is the average per game.

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2 years ago
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