By addition theorem of probability,
P(AUB) = P(A) + P(B) -P(A∩B)
or
P(A or B) = P(A) +P(B) - P(A and B)
P(A or B) = 0.7 + 0.4 - 0.3 = 0.8
Therefore, the probability that randomly selected person likes pizza or burger is 0.8
Answer:
14.8 units³
Step-by-step explanation:
The volume of a "pointed" solid, such as a cone or pyramid, is one-third the product of its base area and height:
V = (1/3)Bh
Filling in the given numbers and doing the arithmetic, we find the volume to be ...
V = (1/3)(7.4 units²)(6 units) = 14.8 units³
The volume of the pyramid is 14.8 cubic units.
Step-by-step explanation:
With centre as O , take 3cm on your compass with the help uf scale and draw a circle.
For second circle , take 5 cm on your compass with the help if scale
The bird is at a height of 405 feet above the school.
<h3>
Trigonometric ratio</h3>
Trigonometric ratio is used to show the relationship between the sides and the angles of a right angled triangle.
Let h represent the height of the bird over the school. Hence, using trigonometric ratios:
tan(39) = h / 500
h = 500 * tan(39)
h = 405 feet
The bird is at a height of 405 feet above the school.
Find out more on Trigonometric ratio at: brainly.com/question/6459892