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lara31 [8.8K]
3 years ago
8

A+b-c=180 Solve the equation

Mathematics
2 answers:
andre [41]3 years ago
5 0
A is 140 b is  60 and c is 20 so its 140 + 60 - 20 = 180
VladimirAG [237]3 years ago
3 0
You can do it in multiple ways but mine is....     140+120-160=180
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yes x=1

Step-by-step explanation:

xx^{2} -2x+1=0\\(x-1)^{2}=0 x-1=0 \\x=1

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Ninety-nine is what percent of 150?
pickupchik [31]

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66

Step-by-step explanation:

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Step-by-step explanation:

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2 years ago
What is the equation?
Nana76 [90]

Answer:

y=-2+4

Step-by-step explanation:

we know the y intercept is four, so we can plug that into y=mx+b

so far we know y=mx+4

and the equation for finding slope is \frac{y_{2} -y_{1} }{x_{2} -x_{1} }

so let's find two points on the graph

let's make it easy on ourselves and use the points laid out for us

(0,4) and (2,0)

\frac{0-4}{2-0}

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3 years ago
A type of long-range radio transmits data across the Atlantic Ocean. The number of errors in the transmission during any given a
Marianna [84]

Answer:

32.33% probability of having at least 3 erros in an hour.

Step-by-step explanation:

In a Poisson distribution, the probability that X represents the number of successes of a random variable is given by the following formula:

P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}

In which

x is the number of sucesses

e = 2.71828 is the Euler number

\mu is the mean in the given time interval.

The mean number of errors is 2 per hour.

This means that \mu = 2

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Either you have 2 or less errors in an hour, or we have at least 3 errors. The sum of the probabilities of these events is decimal 1. So

P(X \leq 2) + P(X \geq 3) = 1

We want P(X \geq 3)

So

P(X \geq 3) = 1 - P(X \leq 2)

In which

P(X \leq 2) = P(X = 0) + P(X = 1) + P(X = 2)

P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}

P(X = 0) = \frac{e^{-2}*(2)^{0}}{(0)!} = 0.1353

P(X = 1) = \frac{e^{-2}*(2)^{1}}{(1)!} = 0.2707

P(X = 2) = \frac{e^{-2}*(2)^{2}}{(2)!} = 0.2707

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P(X \geq 3) = 1 - P(X \leq 2) = 1 - 0.6767 = 0.3233

32.33% probability of having at least 3 erros in an hour.

6 0
3 years ago
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