(W. 4The angle of elevation of a tower, 45 m high from a ball on the ground is 52°. (a) How far is the ball from the foot of the (b) tower? (b) How much further away should the ball be moved from the foot of the tower, so that the angle of elevation is halved?

Q: 3y² - 2y-1 (-)-5y²- 2y +6

A:

Q: 1.25a +3> 0.5a-6 and 2.5a 129-1.5a

A:

Q: Let Mbe as in Equation (3.14) and let X = [1, 0, ½]¹. Show that the entries of Y=MX sum to 1.

A:

Q: 3/8+5/24

A: The given expression is 3/8 + 5/24.Simplify the given expression as follows.

Q: 6 2/5 ÷ 4

A: Given query is to solve the expression.

Q: Question 9

A:

Q: 4 1/2 + 3 2/3=

A: Given,

Q: 1/3+4/5=

A:

Q: 2/5 +7/12

A: Please see the answer below.

Q: 3 3/4 + 2 7/28

A:

Compound Probability

Compound probability can be defined as the probability of the two events which are independent. It can be defined as the multiplication of the probability of two events that are not dependent. 

Tree diagram

Probability theory is a branch of mathematics that deals with the subject of probability. Although there are many different concepts of probability, probability theory expresses the definition mathematically through a series of axioms. Usually, these axioms express probability in terms of a probability space, which assigns a measure with values ranging from 0 to 1 to a set of outcomes known as the sample space. An event is a subset of these outcomes that is described. 

Conditional Probability

By definition, the term probability is expressed as a part of mathematics where the chance of an event that may either occur or not is evaluated and expressed in numerical terms. The range of the value within which probability can be expressed is between 0 and 1. The higher the chance of an event occurring, the closer is its value to be 1. If the probability of an event is 1, it means that the event will happen under all considered circumstances. Similarly, if the probability is exactly 0, then no matter the situation, the event will never occur.