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vodka [1.7K]
3 years ago
9

7. What two transformations? Someone please help

Mathematics
1 answer:
Marianna [84]3 years ago
8 0

Answer:

Rotation and Dilation

Step-by-step explanation:

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Find the sum. –7 + (–2)
Vika [28.1K]

Answer: -9

Step-by-step explanation: when you add unwhole numbers they move father into the negatives if its easier you can take away the - mark and add 7 + 2 which is nine then you put the sign back good luck love!

8 0
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Simplify 5 - (-1) please help me
devlian [24]

Answer:

Step-by-step explanation:

5 - (-1) = 5 + 1 = 6

3 0
3 years ago
A jar contains 3 red, 2 white, and 1 green marble. Aside from color, the marbles are indistinguishable. Two marbles are drawn at
IRISSAK [1]

Answer:

0.6

Step-by-step explanation:

A permutation is an arrangement of outcomes whereas a combination is a grouping of outcomes.

Order matters in case of permutations but does not matter in combinations.

Given:

Number of red marbles = 3

Number of white marbles = 2

Number of green marbles = 1

To find: probability of picking 4 marbles and getting one of each color

Solution:

Total number of outcomes = 6_C__4 = \frac{6!}{4!\,2!}=\frac{6\times 5\times 4!}{4!\times 2}=15

Number of favourable outcomes = 2 red, 1 white and 1 green marble + 1 red, 2 white and 1 green marble = 3_C_2\,2_C_1\,1_C_1+3_C_1\,2_C_2\,1_C_1 = \frac{3!}{2!\,1!}\times \frac{2!}{1!\,1!}\times 1+\frac{3!}{2!\,1!}\times 1\times 1=6+3=9

So, probability of picking 4 marbles and getting one of each color = Number of favourable outcomes/Total number of outcomes =\frac{9}{15}=\frac{3}{5}=0.6

4 0
3 years ago
Area of sector................................
sveticcg [70]

Answer:

A ≈ 25.1 cm²

Step-by-step explanation:

the area (A) of the sector is calculated as

A = area of circle × fraction of circle

  = πr² × \frac{\frac{4\pi }{9} }{2\pi }

  = π × 6² × \frac{\frac{4\pi }{9} }{2\pi }

  = 36π × \frac{\frac{4\pi }{9} }{2\pi }

  = 18 × \frac{4\pi }{9}

  = 2 × 4π

  = 8π

  ≈ 25.1 cm² ( to the nearest tenth )

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2 years ago
The origin is the point _________ in the coordinate plane
Mekhanik [1.2K]

Answer:

0

Step-by-step explanation:

6 0
3 years ago
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