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sweet [91]
2 years ago
10

Sam is building a fence around his circular garden with a diameter of 8 ft. How long is the fence?

Mathematics
1 answer:
r-ruslan [8.4K]2 years ago
3 0

Answer:

25.13ft

Step-by-step explanation:

The length of the fence will be the circumference.

C=2*pi*r=2*pi*8/2=8pi=25.13ft

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On Thursday the high temperature was 0 °C. If it was three degrees colder on Friday, what was the temperature?
Rina8888 [55]

Answer:

-3 degrees C

Step-by-step explanation:

We need to subtract 3 degrees from Thursdays temperature

0 - 3

-3 degrees C

8 0
3 years ago
All athletes at the Olympic games are tested for performance-enhancing steroid drug use. The imperfect test gives positive resul
Nana76 [90]

Answer:

0.4%

Step-by-step explanation:

We have two independent events

  1. The athlete who is being tested for drugs actually is using steroids.
  2. The test went wrong indicating a false result.

The probability of 1) to happen is 0.04 because "4% of all registered athletes use steroids".

The probability of 2) ti happen is 0.1 because "The imperfect test gives positive results (indicating drug use) for 90% of all steroid-users"

Then the probability of 1) and 2) to happen is given by

P=P(1)*P(2)=(0.04)(0.1)=0.004=0.4%

3 0
3 years ago
} A rectangle has an area of 25 square feet. A similar rectangle has an area of 200 square feet. What is ratio of the areas of t
ValentinkaMS [17]

Answer:

The ratio of smaller rectangle to larger is 1 : 8.

Step-by-step explanation:

Given that:

Area of smaller rectangle = 25 square feet

Area of larger rectangle = 200 square feet

Ratio of areas of these similar rectangles;

Smaller rectangle : Larger rectangle

25 : 200

1 : 8

Hence,

The ratio of smaller rectangle to larger is 1 : 8.

7 0
3 years ago
Find the total profit or loss for each color of t-shrit
sergejj [24]

Green T-shirt: profit- $1

White T-shirt: profit- $3

Black T-shirt: profit- $3

4 0
3 years ago
I need a math wizard!! Anyone know the answer?
Dafna11 [192]

Answer:

SinA = CosB

SinB = CosA

CosA = SinB

CosB = SinA

7 0
3 years ago
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