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jeka57 [31]
3 years ago
13

A weather station in a major city in the Northwest kept data about the weather conditions over the past year. The probabilities

are displayed in the table below:
Hot Mild Cold
Sunny 0.15 0.30 0.10
Cloudy 0.10 0.25 0.10


If a random day is chosen from this data, what is the probability that the day was hot or sunny?
Mathematics
2 answers:
Marat540 [252]3 years ago
7 0

0.15 + 0.1 + 0.3 + 0.1 = 0.65

Black_prince [1.1K]3 years ago
3 0
It is important to note that all the information's required are already given in the question

Probability that a day will be hot = 0.15 + 0.10
                                                   = 0.25
Probability that a day will be sunny = 0.15 + 0.30 + 0.10
                                                        = 0.55
Adding the above two probabilities, we get = 0.25 + 0.55
                                                                     = 0.80
Now
Probability that a day will be both hot and sunny = 0.15
So
Probability that a day was hot or sunny = 0.80 - 0.15
                                                               = 0.65
I hope the procedure is clear enough for you to understand.
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never [62]

Answer:

40°, 95°, 105°, and 160°

Step-by-step explanation:

Let the smallest angle be x.

Measures of the 3 angles can be expressed as:

x + 55

x + 65

x + 120

The sum of all angles in a quadrilateral = 360°.

Therefore, (x + 55) + (x + 65) + (x + 120) = 360

Solve for x

x + 55 + x + 65 + x + 120 = 360

3x + 240 = 360

3x + 240 - 240 = 360 - 240

3x = 120

\frac{3x}{3} = \frac{120}{3}

x = 40

The smallest angle = 40°

Plug in the value of x in the earlier stated expressions to find the measure of the other angles:

x + 55 = 40 + 55 = 95

x + 65 = 40 + 65 = 105

x + 120 = 40 + 120 = 160

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3 years ago
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deff fn [24]

Answer:

m<AEC = 105

Step-by-step explanation:

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6 0
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zhannawk [14.2K]
  • Answer:

<em>3√3</em>

  • Step-by-step explanation:

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From the first equation,
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Now substitue x in the second equation with (3y +15 - 5).
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