Based on past experience, a firm of architects sets the probability of winning a contract at 0.35. The contract is worth $18,000 and the firm calculates it would cost $3,600 to prepare a contract proposal. (6 marks) a) Find the expected value of the contract proposal.
b) Is it financially a good idea for the firm to bid on the contract? Why?

3.how is solving radical equations different than solving linear equations?

step-by-step explanation:

x equals 1

step-by-step explanation:

f(4)=f(×)

x=1

proofs involving isosceles triangles often require special consideration because an isosceles triangle has several distinct properties that do not apply to normal triangles.(more about triangle types) therefore, when you are trying to prove that two triangles are congruent, and one or both triangles, are isosceles you have a few theorems that you can use to make your life easier.

step-by-step explanation:

an isosceles triangle has two congruent sides and two congruent angles. the congruent angles are called the base angles and the other angle is known as the vertex angle. ∠bac and ∠bca are the base angles of the triangle picture on the left. the vertex angle is ∠abc