Is 1.5 * 10^3 written in scientific notation? explain.
yes, the coefficient is between 1 and 10.
100
Is .005 * 10^3 written in scientific notation? explain.
no, the coefficient is less than 1
100
6.25 *10^3 + 3.13* 10^3
9.38* 10^3
100
3 x 10^4 x 2 x 10^4
6 x 10^8
100
Which number would you express in S.N.?
2, 11, 1500, .1
1500
200
Express in standard form: 2.5* 10^6
2,500,000
200
Express in standard form: 1.765* 10^-7
.0000001765
200
7.24*10^5 - 2.12* 10^5
5.12* 10^5
200
9 x 10^6 x 3 x 10^9
2.7 x 10^16
200
Which would you use S.N. for?
A. Distance from your house to school in miles
B. Number of chairs in a classroom
C. Number of feet a sky diver falls
D. Height of a basketball hoop in feet
C
300
Express in scientific notation: .0000325
3.25* 10^5
300
Which number is larger? why?
7.6* 10^-5 or 3.5* 10^-5
7.6* 10^-5, the coefficient is larger
300
3.15* 10^14 + 2.01* 10^15
2.325*10^15
300
9 x 10^5 divide by (3 x 10^ 3)
3 x 10^2
300
2.25 *10^5; 2.25 is what part when labeling scientific method?
coefficient
400
Is 21.5 * 10^3 written in scientific notation? explain.
no, the coefficient is over 10
400
Which number is smaller? why?
9.889* 10^-6 or 7.889* 10^-5
9.889* 10^-6, the exponent is smaller
400
7.22 * 10^22 - 2.2* 10^21
7* 10^22
400
2.8 x 10^9 divide by (1.6 x 10^2)
1.75 x 10^7
400
Scientific notation is used to...
express extremely small and extremely large numbers
500
Which number is greater? why?
9.84*10^7 or 3.24* 10^8
3.24* 10^8, exponent is larger
500
Which number is smaller? why?
.00000045 or 4.6* 10^-8
4.6* 10^-8, the exponent is smaller
500
9.55* 10^13 + 4.5* 10^12
1* 10^14
500
The planet Mercury has an approximate mass of 3.3 x 10^23 kilograms. Mars has a mass of about 6.4 x 10^23 kilograms. How many times as great as the mass of Mercury is the mass of Mars? Round to the nearest tenth.
1.9
500
3×10^−8 is 1/30,000 times as large as what number?