1/27 Do Now

Suppose a culture of bacteria begins with 5000 cells and dies by 30% each year. Write an equation that represents this situation.

• y=5000(0.7)^x
• y=30(5000)^x
• y=5000(1.3)^x
• y=5000x^x

Tags

CCSS.HSF.LE.A.2

Suppose you deposit $3000 in a savings account that pays interest at an annual rate of 4%. If no other money is added or withdrawn from the account, how much will be in the account after 10 years?

• $3122.18
• $4994.50
• $4440.73
• $86,776.40

Tags

CCSS.HSF.LE.A.2

CCSS.HSA.CED.A.1

CCSS.HSF.BF.A.1

CCSS.HSF.BF.A.2

CCSS.HSF.LE.A.1

Which of the following functions shows an initial amount of $15 and an increase of 35% each year?

• y = 15(35)^x
• y = 15(1.35)^x
• y = 15(0.35)^x
• y = 35(1.15)^x

Tags

CCSS.HSF.LE.A.2

If 10 mg of iodine 131 is given to a patient, how much is left after 24 days? The half-life of iodine-131 is 8 days.

• 1.25mg
• 1.25g
• 10g
• 10mg

Tags

CCSS.HSF.LE.A.4

The half-life of strontium-90 is 25 years. How much strontium-90 will remain after 100 years if the initial amount is 4.0 g?

• 3.0g
• 0.25mg
• 0.3g
• 0.25g

Tags

CCSS.HSF.LE.A.4

Find the total value of the investment after the time given.
$130 at 9.4% compounded quarterly for 2 years 

• $212.45
• $196.89
• $156.55
• $234.56

The population of turtles is doubling every 3 months.  If there are 400 turtles now, how many will there be in 2 years?  (Choose equation)

• y = 400(2)²
• y = 400(2)⁶
• y = 400(2)⁸
• y = 400 + 2(8)

Katie and Jennifer are playing a game. Katie started the game with 100 points, and she's been doubling her score each round. Write an equation to model this situation.

• y = 2(101)^x

• y = 100(3)^x

• y = 100(2)^x

• y = 2(100)^x

Simplify:  $\left(2a^3b^4c^3\right)^2\cdot\left(4a^2bc^3\right)$  

•  $16a^8b^9c^9$  

•  $8a^8b^9c^9$  

•  $8a^6b^5c^6$  

•  $16a^5b^5c^6$  

Tags

CCSS.HSA.APR.A.1

Simplify:  $\left(2m\right)^5$  

•  $10m^5$  

•  $32m^5$  

•  $25m^5$  

•  $\frac{1}{2m^5}$  

Tags

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3