What is 5.5×10^4 multiplied by 2.2×10^−8? Write the answer in scientific notation.(1 point)
Responses
1.21×10^−5
12.1×10^−4
1.21×10^−3
55×10^−12
What is 5.5×10^4 multiplied by 2.2×10^−8? Write the answer in scientific notation.(1 point)
Responses
1.21×10^−5
12.1×10^−4
1.21×10^−4
1.21×10^−3
12.1×10^−4
When multiplying two numbers in scientific notation, what operations do you use on the coefficients and the exponents of the powers of 10?(1 point)
Responses
Multiply the coefficients and add the exponents of the powers of 10.
Multiply the coefficients and add the exponents of the powers of 10.
Multiply the coefficients and multiply the exponents of the powers of 10.
Multiply the coefficients and multiply the exponents of the powers of 10.
Add the coefficients and add the exponents of the powers of 10.
Add the coefficients and add the exponents of the powers of 10.
Add the coefficients and multiply the exponents of the powers of 10
Multiply the coefficients and add the exponents of the powers of 10.
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 millimeters of tape. Write the product in scientific notation.(1 point)
Responses
1.4478×10^4 mm^2
14.478×10^4 mm^2
1.4478×10^5 mm^2
14.478×10^5 mm^2
1.4478×10^5 mm^2
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 point)
Responses
7.35×10^7 ml
7.35×10^6 ml
7.35×10^5 ml
0.735×10^7 ml
To find the total volume of 1.5×10^6 sugar cubes, we need to multiply the volume of one sugar cube (4.9 ml) by the total number of sugar cubes (1.5×10^6).
(4.9 ml) × (1.5×10^6) = 7.35×10^6 ml
Therefore, the total volume in milliliters of 1.5×10^6 sugar cubes is 7.35×10^6 ml.
Multiply 0.75 by 2.8×10^−5
.(1 point)
Responses
2.1×10^−5
2.1×10^−7
2.1×10^−4
2.1×10^−6