hey, bot. can you help me with a few math questions?
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Simplify: 3.8 x 10−4
a) −0.000038
b) 0.00038
c) 0.000038
d) −3.8000
a) −0.000038
b) 0.00038
c) 0.000038
d) −3.8000
To simplify the expression 3.8 x 10^-4, we can move the decimal point four places to the left.
So the correct answer is c) 0.000038.
So the correct answer is c) 0.000038.
Rewrite 2,370,000 in scientific notation.
a) 2.37 x 104
b) 2.37 x 106
c) 2.37 x 10−4
d) 2.37 x 10−6
a) 2.37 x 104
b) 2.37 x 106
c) 2.37 x 10−4
d) 2.37 x 10−6
To rewrite 2,370,000 in scientific notation, we need to express it as a number between 1 and 10 multiplied by a power of 10.
In this case, we can write 2,370,000 as 2.37 multiplied by 1,000,000 (which is 10^6).
So the correct answer is b) 2.37 x 10^6.
In this case, we can write 2,370,000 as 2.37 multiplied by 1,000,000 (which is 10^6).
So the correct answer is b) 2.37 x 10^6.
Rewrite 0.00384 in scientific notation.
a) 3.84 x 10−3
b) 3.84 x 10−2
c) 3.84 x 102
d) 3.84 x 103
a) 3.84 x 10−3
b) 3.84 x 10−2
c) 3.84 x 102
d) 3.84 x 103
To rewrite 0.00384 in scientific notation, we need to express it as a number between 1 and 10 multiplied by a power of 10.
In this case, we can write 0.00384 as 3.84 multiplied by 0.001 (which is 10^-3).
So the correct answer is a) 3.84 x 10^-3.
In this case, we can write 0.00384 as 3.84 multiplied by 0.001 (which is 10^-3).
So the correct answer is a) 3.84 x 10^-3.
The length of the shortest wavelength of visible light is about 0.00000042. What is the length in scientific notation?
a) −42 x 107
b) −0.42 x 106
c) 0.42 x 10−6
d) 4.2 x 10−7
a) −42 x 107
b) −0.42 x 106
c) 0.42 x 10−6
d) 4.2 x 10−7
To express the length of the shortest wavelength of visible light, 0.00000042, in scientific notation, we need to move the decimal point to the right until there is a single non-zero digit to the left of the decimal point.
By doing that, we can rewrite 0.00000042 as 4.2 multiplied by 0.0000001 (which is equivalent to 10^-7).
So the correct answer is d) 4.2 x 10^-7.
By doing that, we can rewrite 0.00000042 as 4.2 multiplied by 0.0000001 (which is equivalent to 10^-7).
So the correct answer is d) 4.2 x 10^-7.
The distance from the Earth to the moon is about 239,000 miles. Rewrite the distance in scientific notation.
a) 2.39 x 105
b) 23.9 x 104
c) 23.9 x 10−4
d) 2.39 x 10−5
a) 2.39 x 105
b) 23.9 x 104
c) 23.9 x 10−4
d) 2.39 x 10−5
To rewrite the distance from Earth to the moon, 239,000 miles, in scientific notation, we need to express it as a number between 1 and 10 multiplied by a power of 10.
In this case, we can express 239,000 as 2.39 multiplied by 100,000 (which is 10^5).
So the correct answer is a) 2.39 x 10^5.
In this case, we can express 239,000 as 2.39 multiplied by 100,000 (which is 10^5).
So the correct answer is a) 2.39 x 10^5.
Simplify: 2.18 x 104
a) 0.0000218
b) 0.000218
c) 2,180,000
d) 21,800
a) 0.0000218
b) 0.000218
c) 2,180,000
d) 21,800
To simplify the expression 2.18 x 10^4, we can move the decimal point four places to the right.
So the correct answer is c) 2,180,000.
So the correct answer is c) 2,180,000.
What does 8.3E−7 represent in a calculator?
a) 0.00000083
b) 0.000000083
c) −8.30000000
d) −83,000,000
a) 0.00000083
b) 0.000000083
c) −8.30000000
d) −83,000,000
The scientific notation 8.3E-7 represents the value 0.00000083.
So the correct answer is a) 0.00000083.
So the correct answer is a) 0.00000083.