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NISA [10]
2 years ago
13

2/x^2 in indices form explanation. I know the answer is 2x^-2 but I want an explanation.

Mathematics
1 answer:
Misha Larkins [42]2 years ago
7 0

Answer:

see explanation

Step-by-step explanation:

Using the rule of exponents

\frac{1}{a^{m} } ⇔ a^{-m} , then

\frac{2}{x^2} = 2 × \frac{1}{x^2} = 2x^{-2}

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Item 16 A scale drawing of a triangular sign has a scale factor of 1:8. Which statements are true? The ratio of the area of the
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The correct option is;

The ratio of the area of the scale drawing to the area of the sign is equal to the square of the scale factor

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In the circle below, suppose m VUX = 152° and mZUVW = 77º. Find the following.
bezimeni [28]

Given:

In the circle, m(\overarc{VUX})=152^\circ and m(\angle MUV)=77^\circ.

To find:

The following measures:

(a) m\angle VUX

(b) m\angle UXW

Solution:

According to the central angle theorem, the central angle is always twice of the subtended angle intercepted on the same same arc.

m(VUX)=2\times m\angle VWX

152^\circ=2\times m\angle VWX

\dfrac{152^\circ}{2}=m\angle VWX

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In a cyclic quadrilateral, the opposite angles are supplementary angles.

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m\angle VUX=104^\circ

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m\angle UXW+m\angle UVW=180^\circ          [Opposite angles of a cyclic quadrilateral]

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m\angle UXW=180^\circ-77^\circ

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