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Morgarella [4.7K]
3 years ago
13

Hey, can you please help me with this? thanks btw :)

Mathematics
2 answers:
wariber [46]3 years ago
8 0
28.27 is the area of the circle with a diameter of 6
Citrus2011 [14]3 years ago
6 0

Answer:

9π

Step-by-step explanation:

Area of Circle: πr²

Diameter = radius * 2

Diameter = 3 * 2 = 6

Plug into the formula πr²

(3)²π ≈ 28.274 or 9π

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What's the Error? Explain the error. Find the correct solution.<br> 42-(-6)=-7
earnstyle [38]

Answer: 42 -(-6)= 48

Step-by-step explanation:

a negative - a negative will always equal a positive

:)

3 0
3 years ago
Jack likes to go fishing. While waiting for the fishes to bite, he formulates the following model for the process: fishes bite a
gogolik [260]

Answer:

a) 0.122

b) 3.35 × 10⁻⁴

c) 0.1071

Step-by-step explanation:

Here we have the Poisson process given by

P(N(t) = k) = \frac{e^{-\lambda t} (\lambda t)^k }{k!}

Where:

λ = Rate = 4 bites/hour and

t = Length of time that is

Mean = λt

Where k = 6 fishes bites and t = 2 hours we have

P(N(2) = 6) = \frac{e^{-4 \times 2} (4 \times 2)^6 }{6!} = 0.122

b) The probability that he fails to catch any fishes during the first two hours is the probability t that he catches 0 fish as follows

P(N(2) = 0) = \frac{e^{-4 \times 2} (4 \times 2)^0 }{0!} = 3.35 \times 10^{-4}

(c) Here we have

P(N(2) = 6) =  0.122

For 1 fish caught in two times we have first time no fish and second time he caches a fish gives

0.122×(1-0.122) = 0.1071

4 0
3 years ago
Area= 200in2 what is the area?
densk [106]
10b=200
10/10=1
200/10=20
B=20 inches
Hope this helped!
5 0
3 years ago
Read 2 more answers
find the diameters of a circle with a circumference of 443 feet use 3.14 for n a. 70.5 b. 141 c.142 d.282
zvonat [6]
The formula for diameter is:

circumference/pi (3.14)

If the circumference is 443, we can divide that by pi.

443/3.14=141.01

The answer would then be choice b (141).

3 0
3 years ago
Read 2 more answers
What are the solutions to the system of equations? y = 2x^2 - 4x + 1 and y = 4x + 1. ( □, □) and (□,□)​.
Akimi4 [234]

Answer:

(0, 1)

(4, 17)

Step-by-step explanation:

2x^2 - 4x + 1 = 4x + 1

2x^2 - 8x = 0

x(2x - 8) = 0

therefore either

x = 0

or

2x - 8 = 0

2x = 8

 x = 4

(0, 1)

(4, 17)

5 0
3 years ago
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