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denis-greek [22]
3 years ago
6

Martha works at a small jewelry store. She designed 2 rings in the furst hour. Every additional hour, she designs 3 new rings.

Mathematics
2 answers:
saveliy_v [14]3 years ago
7 0

Answer:

r(n) = 3n - 1 and r(1) = 2; r(n) = r(n - 1) + 3, for n ≥ 2

Step-by-step explanation:

andrey2020 [161]3 years ago
4 0
So should be it is 53
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Which one is a proportion 3/4=12/15, 8/10=6/8,6/9=8/12, or 4/6=9/12
erik [133]

Answer:

6/9 and 8/12 is the answer

Step-by-step explanation:

simplify both ratios

6/9 divide by 3 to =2/3

8/12 divide by 4 to =2/3

7 0
2 years ago
Yolanda paid for her movie ticket using 28 coins, all nickels and quarters. The ticket cost $4. Which system of linear equations
Anvisha [2.4K]

Answer:

n + q = 28 0.05n + 0.25q = 4

3 0
3 years ago
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Circle A has center (0, 0) and radius 3. Circle B has center (-5, 0) and radius 1. What sequence of transformations could be use
Dmitrij [34]

A translation of T(x, y) = (- 5, 2) and a dilation with center (- 5, 2) with a scale factor of 1 / 3 are necessary to transform circle A into circle B. (Correct choice: D)

<h3>What sequence of rigid transformations can be done on a circle</h3>

In this problem we must determine the sequence of transformations require to transform circle A into circle B. From analytical geometry we know that the equation of the circle in standard form is:

(x - h)² + (y - k)² = r²

Where:

  • (h, k) - Coordinates of the center.
  • r - Radius of the circle.

Then, we need to apply the following rigid transformations:

Translation

f(x, y) → f(x - h, y - k), where (h, k) is the translation vector.

Dilation with center at the center of the circle

r → k · r, where k is the scale factor.

The circle A is represented by x² + y² = 3, then we derive the expression for the circle B:

f(x, y) → f(x + 5, y - 2)

(x + 5)² + (y - 2)² = 9

r → k · r

(x + 5)² + (y - 2)² = (1 / 3)² · 9

(x + 5)² + (y - 2)² = 1

Then, a translation of T(x, y) = (- 5, 2) and a dilation with center (- 5, 2) are necessary to transform circle A into circle B.

To learn more on rigid transformations: brainly.com/question/28004150

#SPJ1

8 0
1 year ago
Write an exponential function to describe the given sequence of numbers.
andriy [413]

Answer:

  a(n) = 9·6^(n-1)

Step-by-step explanation:

The general term a(n) of a geometric sequence with first term a(1) and common ratio r is given by ...

  a(n) = a(1)·r^(n-1)

Your sequence has first term 9 and common ratio 54/9 = 6, so the function describing it is ...

  a(n) = 9·6^(n-1)

5 0
3 years ago
Área de un cuadrado de 5 cm otro de 4 cm y de 8 cm cual es el Area.​
Dmitriy789 [7]

Answer:

Bruv, this is an English server.

Step-by-step explanation:

5 0
3 years ago
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