Hello! I need some help with math! I have tried to do this but I am unsure about my answers. My I will identify my answers with a "<--". Also, if I have missed one, please tell me the right answer! Also, Thanks for your help in advance! Have a nice day!
1. Which of the following expressions is written in scientific notation?
a. 73.4 x 10^5 <-- My Answer!
b. 0.09 × 10^7
c. 80 x 10^3
d. 4.22 x 10^–3
2. Which of the following is 0.0000000708 written in scientific notation?
a. 7.08 x 10^–8
b. 7.8 x 10^–8
c. 708 x 10^–10 <-- My Answer!
d. 70.08 x 10^–9
3. Which expression represents the largest number?
a. 40.1 x 10^–6
b. 4.1 x 10^–7
c. 0.411 x 10^–7
d. 0.04001 x 10^–5 <-- My Answer!
4. Which expression is equal to 1/8000 written in scientific notation?
a. 8.0 x 10^3
b. 1.25 x 10^–4
c. 125 x 10^–5 <-- My Answer!
d. 1.25 x 10^4
5. Which of the following statements is NOT true regarding an expression written in scientific notation in the form of a x 10^n ?
a. The value of a must be greater than or equal to 1 and smaller than 10.
b. The value of n must be an integer.
c. Doubling n results in a doubling of the value of the expression. <-- My Answer!
d. Doubling a results in a doubling of the value of the expression.
6. Which number is equal to 7(3.5 x 10^4) written in scientific notation?
a. 24.5 x 70^4
b. 2.45 x 10^5
c. 24.5 x 10^4
d. 1.05 x 10^5 <-- My Answer!
Hey here are the right answers
1.D
2.A
3.A
4.B
5.C
6.B
I just failed the test thanks to them so here are the correct answers !!!!
Thea^ is right and 7. is A
It’s
1) D- 4.22x10^5
2) A- 7.08x10^-8
3) A- 6.1x10^-7
4) B- 1.25x10^-4
5) C- doubling n results in a doubling of the value of the expression
6) B- 2.45x10^5
7) A- 3x10^3
I just took the quiz and this is right for me.
1) D- 4.22x10^5
2) A- 7.08x10^-8
3) A- 6.1x10^-7
4) B- 1.25x10^-4
5) C- doubling n results in a doubling of the value of the expression
6) B- 2.45x10^5
7) A- 3x10^3
Lesson 2: Scientific Notation
Connections Answers
Hope this helps!
(7/7) ;)
thea and anon are right
The answers above are ALL CORRECT!
1-D
2-A
3-A
4-B
5-C
6-B
7-A
Connections
I got 100% thanks!
d
a
a
b
c
b
a
your welcome