Algebra Review II

Question	Answer
The monthly demand and supply functions for Luminar desk lamp are given by; d(x)=-1.1x2+1.5x+40 s(x)=0.1x2+0.5x+15 Find the equilibrium price and quantity if p is measured in dollars and x in units of thousand.	Equilibrium quantity is 5000 and equilibrium price is $20
Express this equation in logarithmic form Image: 30c97dc9-8ecf-44b7-906f-80be8c016518 (image/png)	Image: 06affda3-4297-466a-9fe0-128d85ec9880 (image/png)
Solve this equation ( without using calculator) Image: 577e4c48-6c41-4178-bcf8-f3943e8e12c3 (image/png)	x=-2 or x=3
Solve for x Image: b46db07c-2e34-419f-9eba-94ccf56ee43b (image/png)	Image: 3b1645fe-918d-44b6-be53-c6002c99c037 (image/png)
Solve for x Image: fedd27f9-12d6-4da3-a914-9c0849127489 (image/png)	Image: 55f490a5-1a50-4b15-9611-96db7cf77750 (image/png)
The number of students who contracted influenza after t days could be approximated by the exponential model below. If 90 students contracted the flu by day 10, how many students contracted the flu by day 20? Image: 6cee2b33-5ec0-4953-9340-5fd5e5c06106 (image/png)	Image: 33afda06-7298-49a1-8710-e34bf5348e93 (image/png)
The temperature of a cup of coffee at time t is given by the equation below. Initially, the temperature of the coffee was 200F. Three minutes later , it was 180F. When will the temperature of the coffee be 150F? Image: caac6173-c9d2-4c28-b257-e8eb43c52f4a (image/png)	Image: 075c06b1-e5bc-470a-a6d6-0e2373a6ec0f (image/png)

Resource summary

	Created by Yasmin Bani about 8 years ago