# Posts by Ophelia

Total # Posts: 11

**maths**

The daily production costs C( in dollars per unit) for a manufacturer of lighting fixtures are given by the quadratic function C(X)=800-10X+0.25X2 where x is the number of units produced. How many fixtures should be produced to yield a minimum cost per unit

*August 26, 2016*

**Science**

Need help

*April 4, 2016*

**Science**

The compound KCIO3 decomposes according to the following equation 2KCIO3- 2KCI + 3O2

*April 4, 2016*

**Math - 5th grade**

peter's pumpkin patch

*October 30, 2011*

**Finite Math**

Consider the pea data: # peas in pod 2,3,4,5,6 and frequency 7, 9, 5, 3, 1: a. find the mean, median, mode and midrange number of peas per pod. b. is the mean higher or lower than the median? What kind of skew does this indicate?

*April 6, 2011*

**finite math**

a quality control engineer at a light bulb plant estimated that 1% of the bulbs it sells are defective. if you purcgase a package of 3 bulbs what is the probability that exactly one of them is defective?

*March 24, 2011*

**finite math**

a quality control engineer at a light bulb plant estimated that 1% of the bulbs it sells are defective. if you purcgase a package of 3 bulbs what is the probability that exactly one of them is defective?

*March 24, 2011*

**finite math**

a box contains 40 computer disks, 5 are defective. Three disks are selected from the box without replacement and regard to order. what is the probability that a. all three of the disks are defective b. none of the three disks are defective c. exactly one of the three disks is ...

*March 24, 2011*

**managerial economics**

mux/px=muy/py<muz/pz, there are 3 goods and z has a larger mu per dollar than x and y. so how does a consumer rectify this maximize satisfaction?

*November 5, 2010*

**com/150**

week 1 discussion question

*March 1, 2010*

**Science**

methods of house insulation?

*October 2, 2007*

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