Jeff O.

Find f'(x) given f(x) = e^7

Find dy/dx given y=(4+xe^x)/e^x

(x^2-9)/(x-3), if x<3ax^2+bx-4 , if 3≤x<52x-a+b , if x≥5I tried but I get that a=1/21 and that b=67/21. Any help would be greatly appreciated :)

The graphs of f and g are given. Find a formula for the function g.g(x) =  

1.    One and a half percent (1.5%) of women over 55 have breast cancer. Ninety-two percent (92%) of all women who have breast cancer test positive on mammograms. Nine percent (9%) of... more

When will the strains have the same number of​ cells? Give the ordered pair please!

6 marbles, 3 of which is defective.Upon inspection on defective marble, 80% chance to successfully confirm indeed defective.However, inspection made on good marble has a 5% chance of wrongly... more

The annual inventory cost C for a manufacturer is given below, where Q is the order size when the inventory is replenished. Find the change in annual cost when Q is increased from 356 to 357, and... more

There are 25 red marbles, 15 green marbles, and 10 blue marbles.You randomly pick 4 from the bag.What is the probability of picking at least 1 marble of each color?

Assume that the readings at freezing on a batch of thermometers are normally distributed with a mean of 0°C and a standard deviation of 1.00°C. A single thermometer is randomly selected and tested.... more

11.water is being drained out of a swimming pool at a constant rate of 780 gallons per hour. The swimming pool initially contained 45000 gallons of water. A chemical additive must be added to the... more