Express in standard number notation: a. 28,000,000 miles b. 0.0000720 c. 2,430,0

Question

Express in standard number notation: a. 28,000,000 miles b. 0.0000720 c. 2,430,000 (In part c there are four significant figures.) Express in decimal notation: a. 307.8 times 10^3 b. 1.50 times 10^-4 Calculate approximately (use one significant figure and standard numbers): a. 28,000,000 times 8,643,000 b. 2,784.000/(0.00450) (pi) c. 0.0078380 times 187,000,000/3,709,100,000 times 0.0000204 d. 3,982,00/0.006087200 e. 389 times 0.0041/7482/0.00032640 f. (0.0003071)(41.6 times 10^2)(0.00712) The thickness of a block is measured several times. The measurements are: 0.605 cm: 0.610 cm: 0.599 cm: 0.598 cm. Find: a. the average thickness of the block b. the average deviation c. the percent (relative) average deviation Given the equation, y = 2x^2 - 3 plot a graph of this in such a manner that a straight line will result. A table of the values of the variables should be included. The points need not be plotted too precisely. Define briefly: a. slope b. intercept c. abscissa In physics, why would an equation like the one given in XI be plotted as a straight line, rather than as a parabola, as is done in math?

Explanation / Answer

VII)
a)
28,000,000 miles is 2.8*10^7 miles
Answer: 2.8*10^7 miles
b)
0.0000720 is 7.20*10^-5
Answer: 7.20*10^-5
c)
2,430,000 is 2.43*10^6
Answer: 2.43*10^6

VIII)
a)
307.8*10^3 is 307,800 (shift decimal 3 places to right)
Answer: 307,800

b)
1.50*10^-4 is 0.000150 (shift decimal 4 places to left)
Answer: 0.000150

Only 1 question at a time please

Related Questions

Navigate

• Browse (All)
• Browse E
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.