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3 years ago

15

What is the circumference of my circle

1 answer:

ElenaW [278]3 years ago

7 0

Answer:

hello mr dog. can u tell me what u mean by that. send pic

Step-by-step explanation:

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Three missiles are fired at an enemy arsenal. The probabilities the individual missile will hit the arsenal are 0.75, 0.85, and

Fantom [35]

The probability that at least two of the missiles hit the arsenal:
P ( x ≥ 2 ) = P ( x = 2 ) + P ( x = 3 )
P ( x = 2 ) = 0.75 · 0.85 · 0.1 + 0.85 · 0.9 · 0.25 + 0.75 · 0.9 · 0.15 =
= 0.06375 + 0.10125 + 0.19125 = 0.35625
P ( x = 3 ) = 0.75 · 0.85 · 0.9 = 0.57375
P ( x ≥ 2 ) = 0.35625 + 0.57375 = 0.93
Answer:
The probability is 0.93 or 93%.

3 0

3 years ago

Suppose the average price for new cars in 2012 has a mean of $30,100 and a standard deviation of $5,600. Based on this informati

KatRina [158]

Answer:

($13,300,$46,900)

Step-by-step explanation:

We are given the following in he question:

Mean, μ = $30,100

Standard Deviation, σ = $5,600

Chebyshev's Theorem:

According to theorem atleast $1 - \dfrac{1}{k^2}$ percent of data lies within 2 standard deviations of mean.
For k = 3,

$1 -\dfrac{1}{(3)^2} = 0.889 \approx 89\%$

Thus, 89% of data lies within three standard deviation of mean.

$\mu - 3(\sigma) = 30100 - 3(5600) = 13300\\\mu + 3(\sigma) = 30100 + 3(5600) = 46900$

Thus, we expect at least 89% of new car prices to fall within ($13,300,$46,900)

3 0

2 years ago

<img src="https://tex.z-dn.net/?f=x-%5Csqrt%7Bx%7D%20-2" id="TexFormula1" title="x-\sqrt{x} -2" alt="x-\sqrt{x} -2" align="absmi

Nata [24]

Answer:

(sqrt(x) +1)(sqrt(x)-2)

Step-by-step explanation:

$x - 2 \sqrt{x} + \sqrt{x} - 2 \\ \sqrt{x} ( \sqrt{x} - 2) + 1( \sqrt{x} - 2 ) \\ ( \sqrt{x} + 1)( \sqrt{x} - 2)$

4 0

2 years ago

Jackson receives 16.5% commission when he sells a dining room set. How much commission will he receive for selling a dinette set

icang [17]

Answer:

JACKSOM 895?

Step-by-step explanation:

TAMA BA TO ANG ANSWER

4 0

2 years ago

Read 2 more answers

PLZ HELP!! Need the answer!!!

Amiraneli [1.4K]

Yes they are the same because when the negative is distributed into (an+c), the plus sign becomes a negative.

6 0

3 years ago

Read 2 more answers