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2 years ago

Which of the following is perfect square trinomial. Ive asked 4 times. Please Help. Will give brainlilest

Mathematics

1 answer:

Nutka1998 [239]2 years ago

6 0

Answer:

Step-by-step explanation:

a perfect square trinomial is

$a^2x^2\pm2(ab)xy+b^2y^2$

factorized is

$(ax\pm by)^2$

so as you can see option A and B can't be, because they have -49y^2 and it has to be plus

so the other options are C and D

in the trinomial a=4 and b=\pm 7

the roots of a^2 and b^2

$\pm2abxy=\pm2(4)(7)xy\\\\=\pm56xy$

so it's option d with b=-7

$16x^2-56xy+49y^2$

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Answer:

Pressure is 80,000 pascals.

Step-by-step explanation:

Area:

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2 years ago

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Answer:

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Step-by-step explanation:

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2 years ago

Solve for x. (X+16) (4x-5) X = 4.3 X = -7 X = 3 X = 7

jeka94

Answer:

the answer is x = 7

Step-by-step explanation:

1) replace the x with 7

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they're both equal as perpendicular angles should be!

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