4 years ago

Use completing the square to solve for x in the equation (x + 7) (x minus 9) = 25.

Mathematics

1 answer:

PSYCHO15rus [73]4 years ago

5 0

Answer:

x=1+/- the square root of 89

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The length of one side of a square is 3n+2. The perimeter of the square is 4(3n+2). Which expression is equivalent to the perime

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Step-by-step explanation:

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1. The position of a particle moving along a coordinate axis is given by: s(t) = t^2 - 5t + 1. a) Find the speed of the particle

zimovet [89]

Answer: $\left | 2t-5\right |,\ 2,\ 2t-5$

Step-by-step explanation:

Given

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Speed of the particle is given by

$\Rightarrow v=\dfrac{ds}{dt}\\\\\Rightarrow v=\dfrac{d(t^2-5t+1)}{dt}\\\\\Rightarrow v=\left | 2t-5\right |$

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/y . /y
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