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Snezhnost [94]
3 years ago
10

What is the probability of drawing a 3 or a 4 or a heart from a deck of cards?

Mathematics
1 answer:
Effectus [21]3 years ago
5 0
\Omega=\{2\spadesuit;\ 3\spadesuit;...;A\spadesuit;2\heartsuit ;\ 3\heartsuit;...;A\heartsuit;\ 2\diamondsuit;\ 3\diamondsuit;...;A\diamondsuit;\ 2\clubsuit;\ 3\clubsuit;...;A\clubsuit\}\\\\|\Omega|=52\\\\A=\{3\spadesuit;\ 4\spadesuit;\ 3\diamondsuit;\ 4\diamondsuit;\ 3\clubsuit;\ 4\clubsuit;\ 2\heartsuit;\ 3\heartsuit;\ 4\heartsuit;...;A\heartsuit\}\\\\|A|=2+2+2+13=19\\\\P(A)=\dfrac{|A|}{|\Omega|}\to P(A)=\dfrac{19}{52}

Answer:\ \dfrac{19}{52}
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amid [387]

Answer:

B. SAS

\frac{sm}{dl}  =  \frac{27}{9}  = 3  \\  \frac{am}{el}  =  \frac{15}{5}  = 3 \\  angle \: m= angle \: l

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Which of the following points does not lie on the graph of y=5x-5?<br> (0-5)<br> (1.0)<br> (-5.0)
mojhsa [17]
Y=5x-5
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Select the correct answer. What is true of the function as the x values increase?
Alinara [238K]

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B

Step-by-step explanation:

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2 years ago
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Vanyuwa [196]

Answer:

The equation of the straight line is 4x +y = 1

Step-by-step explanation:

<u><em>Step(i):-</em></u>

Given points are (-1,5) and ( 2,-7)

Slope of the line

m =\frac{y_{2}-y_{1}  }{x_{2} -x_{1} }  =\frac{-7-5}{2-(-1)}  = \frac{-12}{3} = -4

slope of the line m = -4

<u><em>Step(ii):-</em></u>

The equation of the straight line passing through the point (-1,5) and having slope 'm' = -4

y - y_{1} = m( x-x_{1} )

y - 5 = -4 ( x-(-1))

y -5 = -4 x -4

4 x + y -5 +4=0

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<u><em>Final answer:-</em></u>

The equation of the straight line is 4x +y = 1

<u><em>  </em></u>

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