# I need help with my math homework

**Question description**

**Question 1**

Find the rational numbers between 1.673 and 1.673

Answers: A. 1.673673367333 B. 1.673 C. 1.674674674 D. 1.673467346734

**Question 2 **

Find the irrational numbers between 1.673 and 1.673

Answer: A. 1.673467344673444 B. 1.673673367333 C. 1.673 D. 1.673467346734

**Question 3**

Find an irrational number between 5/11 and 6/11

Answers: A. 0.45 B. 0.464664666 C. 0.5455 D. 0.535353

**Question 4**

Use scientific notation to perform the following operations. Leave your answer in scientific notation form.

4X10^-4 / 8X10^2

Answer: A. 0.5X10^-3 B. 5X10^-3 C. 5X10^5 D. 5X10^-2

**Question 5**

The national debt of a small country is 7,420,000,000 and the population is 2,720,000. What is the amount of debt per person? Use scientific notation to solve the problem. Round to two decimal places.

(Show your Work)

**Question 6 **

A computer can do one calculation in 1.4X10^-7 seconds. How long would it take the computer to do a trillion (10^12) calculations? Use scientific notation to solve the problem. Round to one decimal place

(Show your Work)

**Question 7 **

A stack of poles has 32 poles in the bottom row, 31 poles in the next row, and so on with 6 poles in the top row. How many poles are there in the stack?

(Show your Work)

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