False. In a coin, there are 2 possible out comes i.e. a head and a tail. if p is the probability of one side coming up, then the probability of the other side comin up will be q = 1 - p.
Therefore, if the probability of head coming up is 3/10, the probability of tail coming up will be 1 - 3/10 = 7/10.
Answer:
615
Step-by-step explanation:
By taking the quotients between the areas, we see that:
<h3>
How to find the probabilities?</h3>
First we need to find the areas of the 3 shapes.
For the triangle, the area is:
T = 3*5/2 = 7.5
For the blue square, the area is:
S = 3*3 = 9
For the rectangle, the area is:
R = 10*6 = 60
Now, what is the probability that a random point lies on the triangle or in the square?
It is equal to the quotient between the areas of the two shapes and the total area of the rectangle, this is:
P= (7.5 + 9)/60 = 0.275
b) The area of the rectangle that is not the square is:
A = 60 - 9 = 51
Then the probability of not landing on the square is:
P' = 51/60 = 0.85
If you want to learn more about probability:
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The tall of the actual building will be 216 feet
Step-by-step explanation:
An architect is presenting a scale model of a building she's designed
to the planning committee of college
1. The scale of the model is 1 inch = 18 feet
2. The tallest wall in the model is 12 inches
3. We need to know how tall the actual building will be
Let us used the ratio method
∵ The scale of the model is 1 inch represents 18 feet
∵ The tallest wall in the model is 12 inch
→ Model(in) : Actual(ft)
→ 1 : 18
→ 12 : h
- By using cross multiplication
∴ 1 × h = 12 × 18
∴ h = 216 feet
∴ The actual height is 216 feet
The tall of the actual building will be 216 feet
Learn more:
You can learn more about ratio in brainly.com/question/2707032
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