Find correct answers everythings please ULTIPLE CHOICE. Choose the one alternati

Question

Find correct answers everythings please ULTIPLE CHOICE. Choose the one alternative that BEST completes the statement or answers the question. ATH ANSWERS MUST BE REPORTED TO THE CORRECT NUMBER OF SIGFICANT FIGURES ALANCE EQUATIONS USING LOWEST WHOLE NUMBER COEFFICIENTS. EAD ALL THE CHOICES BEFORE YOU BUBBLE-IN YOUR ANSWER ) The number 680,000,000,000lexpressed using standard scientific notation is 1) A) 6.8000 x 107 B) 68 x 1010 C) 6.8 x 1011 D) 6.80 x 1010 E) 0.68 x1012 2) Which of the following numbers is the smallest? 2) A) 1.0 x 10-2 B) 3.0 x 10-6 C) 4.0 x 10-12 D) 1.0 x 10-8 E) 0.0000125 x 10-4 3) Which of the following numbers is the largest? A) 205 x 106 B) 405 x 103 2050098 D) 05,000 E) 4.05 x 105 4) Which of the following conversion factors is a measured(not exact) relationship? A) 50 miles/gallon B) 12 in/ft C) 12 eggs/dozen D) 4 qt/gal E) 16 oz/lb 5) How many significant figures are in the number 0.0007080? A) two B) four C) five D) six E) three

Explanation / Answer

Ans 1

Standard scientific notation

6.8 x 10^11

Ans 2

Descending order

?10^1 > 10^0 > 10^-1 > 10^-2 > 10^-3 > 10^-4 and so on

Option A to D are in standard scientific notation but option E is not.

Standard scientific notation of option E

= 1.25 x 10^-9

?From largest to smallest

?10^-2 > 3*10^-6 > 10^-8 > 1.25*10^-9 > 4*10^-12

?Option C is the correct answer

Ans 3

Ascending order

10^0 < 10^1 < 10^2 < 10^3 < 10^4 < 10^5 and so on

From largest to smallest

2.05*10^6 > 6.05*10^5 > (4.05*10^5 = 405*10^3) > 2.0500998

?Option A is the correct answers

?Ans 4

Option A is the correct answer

Because there is not an exact relationship between distance (miles) and volume (gallon)

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