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Crazy boy [7]
3 years ago
7

A Weather Forecaster, predicts that there is a 25% chance of rain on Saturday and a 40% chance of rain on Sunday. If these proba

bilities are correct, what is the probability that it will rain both days?
32.5%

10%

12%

65%
Mathematics
1 answer:
densk [106]3 years ago
3 0

Answer:

10%.

Step-by-step explanation:

These 2 probabilities are independent so we multiply them:

Prob(It rains both days) =  0.40 * 0.25

= 0.10

= 10%.

=

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Please answer this correctly
makvit [3.9K]

80,000,000 is the answer

3 0
3 years ago
More Algebra hw-- :/
grin007 [14]
Answer:
-11x=-66
x=6

Explanation:
-11x-12=-78
1) Add 12 to both sides.
-11x=-78+12
-11x=-66
2) Divide both sides by -11.
x=-66/-11
x=6

Hope this helps! Please leave a thanks and brainliest answer if you can :)
3 0
2 years ago
A ladder 15 feet long leans against the top of a structure at a 60 degree angle to the ground. What is the height of the buildin
Goshia [24]

Answer:

height of the building is 12.99 feet.

Step-by-step explanation:

given, try to analyse:

  • ladder 15 feet long.
  • 60 degree angle to the ground.

the height of the building is opposite to the angle 60° and given hypotenuse, the ladder of 15 feet long.

using sine rule:

sin(x) = \frac{opposite}{hypotenuse}

sin(60) = \frac{opposite}{15}

opposite = sin(60) *15

opposite = 12.99feet

Therefore the height of the building is 12.99 feet.

7 0
2 years ago
Read 2 more answers
For the month of March in a certain city, 57% of the days are cloudy. Also in the month of March in the same city, 55% of the da
oksian1 [2.3K]

Answer: 0.9649

Step-by-step explanation:

Let A denote the event that the days are cloudy and B denotes the event that the days are rainy.

Given : For the month of March in a certain city, the probability that days are cloudy :P(A)=0.57

Also in the month of March in the same city,, the probability that the days are cloudy and rainy :P(A\cap B)=0.55

Now by using the conditional probability, the probability that a randomly selected day in March will be rainy if it is cloudy will be :-

P(B|A)=\dfrac{P(A\cap B)}{P(A)}

\Rightarrow\ P(B|A)=\dfrac{0.55}{0.57}\\\\=0.964912280702\approx0.9649\ \ \text{[Rounded to four decimal places.]}

Hence, the probability that a randomly selected day in March will be rainy if it is cloudy = 0.9649

4 0
3 years ago
the width of a rectangle is 6ft. find the perimeter of the rectangle if it's area is 42 square feet.
katrin2010 [14]
Formula: Area = length * width
Substitute in what you know: 42 = length * 6
Divide both sides by 6 to get the length: length = 7

Formula: Perimeter = 2 (length + width)
Substitute in what you know: P= 2 (7+6)
Solve: Perimeter = 26 ft
4 0
3 years ago
Read 2 more answers
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