3 years ago

Santiago is looking over his credit card statements from the past couple of months. The

Mathematics

1 answer:

mestny [16]3 years ago

4 0

Answer:

133

Step-by-step explanation:

40 percent more than is 133

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Which products result in a perfect square trinomial? Select three options.

Kazeer [188]

Answer:

Second option: $(xy+x)(xy+x)$

Third option: $(2x-3)(-3+2x)$

Fifth option: $(4y^2+25)(25+4y^2)$

Step-by-step explanation:

By definition, a perfect square trinomial can be obtained by squaring binomials.

Then:

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

Knowing this, to obtain a perfect square trinomial, the binomials that you multiply must be equals.

Therefore, the products result in a perfect square trinomial are:

$(xy+x)(xy+x)=(xy+x)^2=(xy)^2+2(xy)(x)+x^2=x^2y^2+2x^2y+x^2$

$(2x-3)(-3+2x)=(2x-3)^2=(2x)^2-2(2x)(3)+3^2=4x^2-12x+9$

$(4y^2+25)(25+4y^2)=(4y^2+25)^2=(4y^2)^2+2(4y^2)(25)+25^2=16y^4+200y^2+625$

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Whats 2+2+2+2+2+2+2+2+2+2

eimsori [14]

Answer:

Step-by-step explanation:

there are 10 2s

2×10 =20

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3 years ago

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What is the perimeter of the square?

kolezko [41]

Answer:

D.68ft

Step-by-step explanation:

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2 years ago

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Wendy purchased 9 pizzas for x dollars. She spent a total of $85.50. Find the value of x

disa [49]

X=9.5 all you do is divide the total by the other factor you have

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Suppose P varies directly with q and that P=36 when q=9 . <br> What is the value of P when q=3?

Yuri [45]

Answer:

P=12

Step-by-step explanation:

Since P=36 and q=9, this looks like a ratio of 4:1. So if q=3, multiply that value by 4 to get your answer

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3 years ago