To find the square root of a number, you must divide the number by 2. True False

Mathematics

1 answer:

Kaylis [27]3 years ago

5 0

To find the square root of a number you would have to divide it by 2
So yes the answer is true

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The radius of a circle is 1 mm. What is the circle's circumference?

hodyreva [135]

Answer:

C≈6.28mm

Step-by-step explanation:

C=2πr

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2 years ago

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Can someone please explain to me step by step how to solve this problem. <br><br> 4y-(3+y);y=2

avanturin [10]

Answer:

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Step-by-step explanation:

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The equation of a parabola is y=x^2-10x+27. Write the equation in vertex form

azamat

Answer:

$\large \boxed{y = (x - 5)^{2} + 2 }$

Step-by-step explanation:

y = x² - 10x + 27

y = ax² + bx + c

This is the general form of the equation for a parabola.

We must convert it to the vertex form

y = (x - h)² + k, where (h,k) are the coordinates of the vertex.

We can do this by completing the square.

$\begin{array}{rcll}y & = & x^{2} - 10x + 27 & \\y - 27 & = & x^{2} - 10x & \text{Subtracted 27 from each side}\\y - 27&= & x^{2} - 10x + 25 - 25 & \text{Added and subtracted (b/2)}^{2}\\y - 27&= & (x - 5)^{2} - 25 & \text{Wrote the first three terms as the square of a binomial}\\y& = & \mathbf{(x - 5)^{2} + 2} & \text{Added 27 to each side}\\\end{array}\\\text{The vertex form of the parabola is $\large \boxed{\mathbf{y = (x - 5)^{2} + 2 }}$}$ The figure below shows that your parabola has its vertex at (5,2).