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Note from the author:

A complete formative lesson with embedded slideshow, mini lecture screencasts, checks for understanding, practice items, mixed review, and reflection. I create these assignments to supplement each lesson of Pearson's Common Core Edition Algebra 1, Algebra 2, and Geometry courses. See also mathquest.net and twitter.com/mathquestEDU.

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1

10 pts

Solve It! The half-life of a radioactive substance is the length of time it takes for half of the atoms in a sample of the substance to decay. The half-life of uranium-238 is expressed in scientific noation below.

Suppose you have a sample of 1000 uranium-238 atoms. How many atoms of uranium-238 are left after the following number of years?

Enter only the number of atoms.

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2

10 pts

Problem 1 Got It?

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4

10 pts

Problem 2 Got It?

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5

10 pts

Problem 3 Got It?

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6

10 pts

Problem 3 Got It?

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7

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8

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9

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10

10 pts

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11

10 pts

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12

10 pts

Vocabulary: How can you tell if an exponential function models growth or decay?

13

10 pts

Reasoning: How can you simplify the compound interest formula when the interest is compounded annually? Explain.

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14

10 pts

Error Analysis: A student deposits $500 into an account that earns 3.5% interest compounded quarterly. Describe and correct the student's error in calculating the account balance after 2 yr.

15

10 pts

Review Lesson 7-6: Graph the function. Zoom and pan your graph to establish an appropriate viewing window.

16

10 pts

Review Lesson 7-6: Graph the function. Zoom and pan your graph to establish an appropriate viewing window.

17

10 pts

Review Lesson 7-6: Graph the function on the canvas. Include all relevant graph detail.

18

10 pts

Review Lesson 3-4: Match each value with

- 7x + 2 < 16Answer by dragging items here
- (1/2)t - 4 ≥ -3Answer by dragging items here
- -0.08 > 0.35k - 0.15Answer by dragging items here

19

15 pts

Review Lesson 4-7: Write an explicit formula for each arithmetic sequence.

20

10 pts

Vocabulary Review: Match each situation and the equation that models it.

- A person begins with $100 and earns $2 each day.Answer by dragging items here
- A person begins with $2 and earns $100 each day.Answer by dragging items here
- A person begins with $100. Each day the money doubles.Answer by dragging items here

21

10 pts

Vocabulary Review: Match each situation and the equation that models it.

- A person begins with $100 and earns $2 each day.Answer by dragging items here
- A person begins with $2 and earns $100 each day.Answer by dragging items here
- A person begins with $100. Each day the money doubles.Answer by dragging items here

22

10 pts

- The amount of money deposited in an account is the __?__.Answer by dragging items here
- The amount of money earned on an investment only is __?__.Answer by dragging items here
- Interest earned on both the principal and the interest left in the account is __?__.Answer by dragging items here

23

10 pts

Use Your Vocabulary: Use the situation below and identify the principal, interest rate, time in years, and balance.

- PrincipalAnswer by dragging items here
- Interest rateAnswer by dragging items here
- Time in yearsAnswer by dragging items here
- BalanceAnswer by dragging items here

24

10 pts

Use Your Vocabulary: Classify the values based on whether they could be a growth factor or decay factor.

- Growth factorAnswer by dragging items here
- Decay factorAnswer by dragging items here
- None of theseAnswer by dragging items here

25

10 pts

Reflection: Math success

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