3 years ago

Determine whether n^2+20n+100 is a perfect square trinomial. Yes No

Mathematics

1 answer:

Black_prince [1.1K]3 years ago

7 0

N²+20n+100 = (n+10)(n+10)
Yes is it a perfect square trinomial

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Which equation represents a linear function? Equation 1: y = 2x + 1 Equation 2: y2 = 3x + 1 Equation 3: y = 5x5 − 1 Equation 4:

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Equation 1 represents a linear function.

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9/10 ÷ 5/10<br> can you please explain?

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Answer:

Step-by-step explanation:

Hello,

Dividing by 1/2 is like multiplying par 2, right ?

Dividing by 5/10 is like multiplying par 10/5, right ?

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2 years ago

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Find all solutions to the equation. cos^2x + 2 cos x + 1 = 0

Black_prince [1.1K]

Answer:

x = pi, 3pi, 5pi etc

x = -pi, -3pi, -5pi etc

Step-by-step explanation:

cos^2 x + 2 cos x + 1 = 0

replace cos x with m

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solve by factoring (this is a^2 +2ab+b^2 = (a+b)^2 where a =m and b=1)

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