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Tamiku [17]
3 years ago
9

Pls help Pls help Pls help

Mathematics
1 answer:
mina [271]3 years ago
5 0

Answer:

Step-by-step explanation:

this will be the outter circle minus the inner circle for the area of the sidewalk

area of circle = \pir^{2}

\pi11^{2} = 380.1327

\pi9^{2} = 254.469

380.1327 - 254.469 =125.6637062m^{2}

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(x + 3)/(3x - 2) - (x - 3)/(3x + 2) = - 22/(9x ^ 2 - 4)
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Answer:

x = -1

Step-by-step explanation:

7 0
3 years ago
Are 3 : 5 and 1.5 : 2.5 equivalent ratios? How do you know?
svetlana [45]

Answer:

Yes.

Step-by-step explanation:

3:5= 1.5:2.5

Each number is divided or multiplyed by the same number.

Ex. 3/2=1.5 and 5/2=2.5

Hope that helps idk if its right though lol

5 0
3 years ago
1. A scooter is travelling at a constant speed of 75 km/h
GuDViN [60]
1.
75 km/h
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2.
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75/1.60934=
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8 0
3 years ago
The ratio of soccer balls to volleyballs in the coach's bag is 10 to 6. If there are 20 soccers balls in the bag how many volley
In-s [12.5K]

Answer:

12

Step-by-step explanation:

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3 0
3 years ago
2 After a hailstorm, a large car dealership wants to determine the proportion of cars that have damage. The service department r
Alinara [238K]

Answer:

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Step-by-step explanation:

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In this question:

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Since both the number of sucesses and of failures is above 10, conditions for inference are met.

4 0
3 years ago
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