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Vinvika [58]
3 years ago
10

When I evaluate expressions I must follow the order of operations?

Mathematics
1 answer:
Serga [27]3 years ago
4 0

Yes you must, or you will not get the right answer.

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How to get x when x^3-x^2+x-1=0?
Art [367]

Answer:

x = 1 or x = ± i

Step-by-step explanation:

Note the sum of the coefficients

1 - 1 + 1 - 1 = 0

This indicates that x = 1 is a root, thus (x - 1) is a factor

Using long division or synthetic division, then

x³ - x² + x - 1 = (x - 1)(x² + 1), thus

(x - 1)(x² + 1) = 0

Equate each factor to zero and solve for x

x - 1 = 0 ⇒ x = 1

x² + 1 = 0 ⇒ x² = - 1 ⇒ x = ± \sqrt{-1} = ± i

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3times4 dividend by6 plus 2
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The correct answer is <u><em>3*4=12/6=2+2=4</em></u>

<u><em>Your answer is 4</em></u>

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A group of researchers was interested in the effect of music on the behavior of dogs. Specifcally, they wanted to
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Time each dog spent sleeping during each of two conditions
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Find the other endpoint of the line segment with the given endpoint and midpoint: Endpoint - (1, 3) Midpoint - (0, 0)
Kobotan [32]

Answer:

The other endpoint of the line segment = (-1, -3)

Step-by-step explanation:

A segment has:

  • Endpoint: (1, 3)
  • Midpoint: (0, 0)

Let (x, y) be the other endpoint of the line segment

\frac{\left(1\:+\:x\right)}{2}=0

\mathrm{Multiply\:both\:sides\:by\:}2

\frac{2\left(1+x\right)}{2}=0\cdot \:2

1+x=0

x=-1

\frac{\left(3+y\right)}{2}=0

\mathrm{Multiply\:both\:sides\:by\:}2

\frac{2\left(3+y\right)}{2}=0\cdot \:2

3+y=0

y=-3

Therefore, the other endpoint of the line segment = (-1, -3)

4 0
3 years ago
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