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Valentin [98]
4 years ago
7

Helpppp will mark brainliest.

Mathematics
1 answer:
Tju [1.3M]4 years ago
4 0
8 ^ (-2) = 1 / 64
<span>4 ^ (-3) = 1 / 64</span>
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Given a dilation around the origin, what is the scale factor K?<br><br> Do, K = (20,16) → (-5,-4)
Rudik [331]

Answer:

Scale factor, K = -1/4

Step-by-step explanation:

Dilation of any image changes its size and the shape remains same.

The scale factor is the ratio of dilated image to original image.

Dilation rule: (x, y) → (kx, ky), where k is the scale factor.

It means k = x₂/x₁ or y₂/y₁

K = -5/20 = -1/4 or K = -4/16 = -1/4.

<u>The negative value of scale factor (K) indicates dilations with 180 degree rotation of the dilated image.</u>

Hence the scale factor is K = -1/4.

5 0
3 years ago
How do I simplify this expression?
Novay_Z [31]
Her go your answer!

7 0
3 years ago
Write an algebraic expression for the phrase five less than the product of six and N
GenaCL600 [577]

Answer:

6N - 5

Step-by-step explanation:

five less than the product of six and N: <em>6N</em>

five less than the product of six and N: <em>6N </em><em>- 5</em>

Answer: 6N - 5

6 0
3 years ago
2. From the adjoining Venn-diagram, find the cardinal numbers of the following sets. a) n (U) b) n (A) c) n (B) d) n (AUB) e) n
Elena L [17]
as the world caves in :)


step by step explanation:
6 0
3 years ago
Use the discriminant to describe the roots of each equation. Then select the best description. x2 - 6x + 12 = 0 double root real
Alona [7]

Answer:

  imaginary roots

Step-by-step explanation:

For a quadratic in the form ...

  ax^2+bx+c=0

the discriminant is ...

  d=b^2-4ac

You have a=1, b=-6, c=12, so the discriminant is ...

  d = (-6)² -4(1)(12) = 36 -48 = -12

When the discriminant is negative, both roots are complex. When the discriminant is not a perfect square, both roots are irrational. Here, the discriminant is negative and not a perfect square, so the roots are complex with an irrational imaginary part.

The best single descriptor is <em>imaginary root</em>.

_____

The roots are (-b±√d)/(2a) = (6 ± 2i√3)/2 = 3 ± i√3. These roots have a rational real part and an irrational imaginary part. When the number with an imaginary part has a non-zero real part, it is called "complex", rather than "imaginary."

3 0
3 years ago
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