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Questions (129)
In which chemical equation is the number of atoms in the reactants the same as the number of atoms in the product?
A. CH4 + O2
9 answers
165 views
A feather weighs 0.0082 g. How many feathers would you need to make a weight of 4.1×10^3 g? Write the answer in scientific
17 answers
114 views
Multiply 0.75 by 2.8×10^−5
1 answer
115 views
A sugar cube has a volume of about 4.9 ml. What is the total volume in milliliters of 1.5×10^6 sugar cubes?
1 answer
76 views
A tape dispenser holds 1.14×10^4 mm of tape that is 12.7 mm wide. Multiply the two numbers to find the total area in square
1 answer
184 views
A tape dispenser holds 1.14×104 mm of tape that is 12.7 mm wide. Multiply the two numbers to find the total area in square
1 answer
305 views
When multiplying two numbers in scientific notation, what operations do you use on the coefficients and the exponents of the
3 answers
220 views
What is 5.5×104 multiplied by 2.2×10−8 ? Write the answer in scientific notation.
3 answers
226 views
Which graphic would be best to accompany an article about the different agricultural regions of California?
A. a photograph of a
1 answer
364 views
Subtract 4.66×10−5−7.34×10−7 (1 point) Responses 2.68×102 2.68 times 10 squared 4.5866×10−5 4.5866 times 10
3 answers
229 views
Find 0.078−(5.2×10−3) . Express your answer in scientific notation. Do not round your answer.
9 answers
138 views
Human hair grows at a rate of about 6.849×10−4 cm per hour to 2.329×10−2 cm per hour. The rate depends on gender,
5 answers
155 views
If the power 7^15 was simplified using the Power Rule of Exponents, which of the following would be an expanded equivalent
3 answers
115 views
What is the missing number in this simplified exponential expression: 7^? / 7^5 = 7^12?
1 answer
278 views
In which set are the numbers arranged in ascending order?
A. 3.25 * 10^-3, 2.25 * 10^-3, 3.25 * 10^-4, 1.25 * 10^-3 B. 0.000325,
1 answer
72 views
Which set of numbers is arranged in descending order?
A. 7.6 * 10^-25, 7.2 * 10^-30, 7.2 * 10^-25, 7 * 10^-30 B. 7.2 * 10^-30, 7
1 answer
141 views
Compare 7.6 * 10^-25 and 6.7 * 10^-52. Which statement is true?
A. 7.6 * 10^-25 = 6.7 * 10^-52 B. 7.6 * 10^-25 < 6.7 * 10^-52 C.
1 answer
144 views
Use scientific notation to compare these numbers: 12,740,876,635; 1,345,763,334; and 12,920,370,000, which has the greatest
1 answer
201 views
Compare 364,879; 463,000; and 436,765 using scientific notation. Which number has the least value?
2 answers
178 views
Use scientific notation to determine which of these numbers has the greatest value: 654,987,034; 645,897,430; or 546,789,340.
1 answer
116 views
Roughly, it takes light less than 0.000000003 of a second to travel a one-meter distance. Express this number in the form of a x
1 answer
193 views
How many times less is 10^2 than 10^6? Express your answer as an integer power of 10.
A. 10^-4 B. 10^4 C. 0.0001 D. 10,000
1 answer
100 views
At the end of fiscal year 2004, the federal debt of Country C is $278,560,125,000. What is the closest estimation of this
2 answers
169 views
How many times 4 x 10^4 larger than 2 x 10^2?
A. 200 B. 20 C. 2,000 D. 2
1 answer
68 views
Use the Product Rule of Exponents to simplify 5^10 * 5^5
A. 25^50 B. 5^50 C. 25^15 D. 5^15
29 answers
139 views
Consider the 6 inch * 9 inch rectangular cake that is 2 inches deep if you cover the cake with frosting excluding the bottom,
23 answers
212 views
Which of the following describes advertising?
A. a true story using facts that can be verified B. a promotion that is paid for by
3 answers
228 views
Mass Media Quick Check
Which of the following describes mass media? A. information produced for private use B. tools used to get
11 answers
1,379 views
Fossils are used to study
A. organisms that live today B. how ancient animals behaved C. phylogenetic trees D. organisms My
22 answers
4,028 views
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