10) An architect is considering bidding for the design of a new shopping mall. The cost of drawing plans and submitting a model is $10,000. The probability of being awarded the bid is 0.09, and anticipated

profits are

$100,000, resulting in a possible gain of this amount minus the $10,000 cost for plans and a

model. What is the expected value in this situation? Answers without any work shown will

receive no credit.

A) $8000

B) $9000

C) -$1000

D) $8100

-$1000

Step-by-step explanation:

Given that:

Possible gain = 100,000 - 10,000 = 90,000

Loss =. 10,000 = cost of model submission

P(being awarded) = 0.09

P(not being awarded). = 1 - 0.09 = 0.91

X : 90000 - 10,000

P(x) : 0.09 0.91

Expected value :

Σx*p(x) = (90000*0.09) + (-10,000 * 0.91)

= 8100 - 9100

= - 1000

225x²+4=0

225x²=0-4

225x²=-4

x²=-4/225

x=±√-4/225

step-by-step explanation:

you can add the two numbers and divide the result by 2. or you can find the gap between the two numbers and add half of this to the smaller number.