Question
Approximate 13 plus cube root of 9 to the nearest tenth.
a) 14.5
b) 15.1
c) 16.0
d) 17.3
a) 14.5
b) 15.1
c) 16.0
d) 17.3
Answers
Answer
Write 280,000,000 in scientific notation.
a) 0.28 × 109
b) 28 × 108
c) 2.8 × 108
d) 2.8 × 109
a) 0.28 × 109
b) 28 × 108
c) 2.8 × 108
d) 2.8 × 109
Answer
Find the sum of (2.8 × 10−9) and (9.1 × 10−10). Write the final answer in scientific notation.
a) 11.9 × 10−19
b) 1.19 × 10−18
c) 3.71 × 10−10
d) 3.71 × 10−9
a) 11.9 × 10−19
b) 1.19 × 10−18
c) 3.71 × 10−10
d) 3.71 × 10−9
Answer
The total payroll for a baseball team is 2.44 × 109 dollars, and the total payroll for a football team is 2.9 × 1011 dollars. How many more dollars is the football team's total payroll than the baseball team's total payroll?
a) 0.46 × 109 dollars
b) 2.8756 × 109 dollars
c) 4.6 × 1011 dollars
d) 2.8756 × 1011 dollars
a) 0.46 × 109 dollars
b) 2.8756 × 109 dollars
c) 4.6 × 1011 dollars
d) 2.8756 × 1011 dollars
Answer
How many times larger is 6.255 × 1010 than 1.5 × 108?
a) 4.17
b) 24.0
c) 240
d) 417
a) 4.17
b) 24.0
c) 240
d) 417
Answered by
GPT 3.5
The cube root of 9 is approximately 2.08. Adding this to 13 gives us 15.08. Rounding to the nearest tenth gives us 15.1.
The correct answer is b) 15.1.
The correct answer is b) 15.1.
Answered by
GPT 3.5
To write 280,000,000 in scientific notation, we move the decimal point 8 places to the left to make it a number between 1 and 10. Therefore, it becomes 2.8. The exponent is then 8, since we moved the decimal point 8 places.
The correct answer is c) 2.8 × 10^8.
The correct answer is c) 2.8 × 10^8.
Answered by
GPT 3.5
To add (2.8 × 10^-9) and (9.1 × 10^-10), we need to make sure the exponents are the same. We can do this by changing (9.1 × 10^-10) to (0.91 × 10^-9).
Now we can add the two numbers:
(2.8 × 10^-9) + (0.91 × 10^-9) = (2.8 + 0.91) × 10^-9 = 3.71 × 10^-9.
The correct answer is d) 3.71 × 10^-9.
Now we can add the two numbers:
(2.8 × 10^-9) + (0.91 × 10^-9) = (2.8 + 0.91) × 10^-9 = 3.71 × 10^-9.
The correct answer is d) 3.71 × 10^-9.
Answered by
GPT 3.5
To find the difference between the football team's total payroll and the baseball team's total payroll, we subtract the baseball team's total payroll from the football team's total payroll.
(2.9 × 10^11) - (2.44 × 10^9) = (2.9 - 0.0244) × 10^11 = 2.8756 × 10^11
The correct answer is d) 2.8756 × 10^11 dollars.
(2.9 × 10^11) - (2.44 × 10^9) = (2.9 - 0.0244) × 10^11 = 2.8756 × 10^11
The correct answer is d) 2.8756 × 10^11 dollars.
Answered by
GPT 3.5
To find out how many times larger one number is than another, we can divide the larger number by the smaller number.
(6.255 × 10^10) / (1.5 × 10^8) = (6.255 / 1.5) × 10^(10-8) = 4.17 × 10^2
So, 6.255 × 10^10 is 417 times larger than 1.5 × 10^8.
The correct answer is d) 417.
(6.255 × 10^10) / (1.5 × 10^8) = (6.255 / 1.5) × 10^(10-8) = 4.17 × 10^2
So, 6.255 × 10^10 is 417 times larger than 1.5 × 10^8.
The correct answer is d) 417.
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