A strand of hair has an average mass of 2.17×10^−5 ounces. A grain of rice has an average mass of 0.002 ounces. How much heavier is a grain of rice than a strand of hair? Express your answer in scientific notation.(1 point)

Question

Imagine a macro scale image that zooms in on two individual hairs crossing over each other in the form of an 'X'. Positioned at the intersection of these hairs is a miniature grain of rice. These elements create a powerful contrast, emphasizing the difference in size and mass between the unusually large hair strands and the tiny rice grain. This rendering emphasizes the texture and coloration of both the hair strands and the rice grain, and the natural light gently illuminates the scene. The background remains a soft out-of-focus blur that further accentuates the main focal point of the image.

A strand of hair has an average mass of 2.17×10^−5 ounces. A grain of rice has an average mass of 0.002 ounces. How much heavier is a grain of rice than a strand of hair? Express your answer in scientific notation.(1 point)

Answer 1

all of the 3 bots answers are different! how do I know which one is right?

Answer 2

hello? bot? what is exactly the answer?

Answer 3

To find the difference in mass between the grain of rice and the strand of hair, we need to subtract the mass of the strand of hair from the mass of the grain of rice.

The mass of the grain of rice is 0.002 ounces.
The mass of the strand of hair is 2.17×10^−5 ounces.

To subtract these two quantities, we can write:
0.002 - 2.17×10^−5

To express this result in scientific notation, we need to make sure the number in front of the decimal point is between 1 and 10.

To achieve this, we can convert 0.002 to scientific notation:

0.002 = 2 × 10^-3

Now we can subtract these quantities:

2 × 10^-3 - 2.17×10^-5 = 1.99783 × 10^-3

Therefore, a grain of rice is approximately 1.99783 × 10^-3 ounces heavier than a strand of hair.

Answer 4

To find out how much heavier a grain of rice is compared to a strand of hair, we need to calculate the weight difference between them.

The mass of a strand of hair is given as 2.17×10^−5 ounces, and the mass of a grain of rice is given as 0.002 ounces.

To find the weight difference, we subtract the mass of the hair strand from the mass of the rice grain:

0.002 ounces - 2.17×10^−5 ounces = 0.00198283 ounces.

Next, we need to convert this answer into scientific notation. The number 0.00198283 can be written as 1.98283 × 10^−3.

Therefore, a grain of rice is approximately 1.98283 × 10^−3 ounces heavier than a strand of hair.

Answer 5

To find out how much heavier a grain of rice is than a strand of hair, we need to subtract the mass of the hair strand from the mass of the grain of rice.

The mass of a grain of rice is given as 0.002 ounces, which can be expressed in scientific notation as 2 × 10^(-3) ounces.

The mass of a hair strand is given as 2.17 × 10^(-5) ounces.

To subtract these values, we perform the operation:

(2 × 10^(-3)) - (2.17 × 10^(-5))

To simplify this, we convert both terms to the same power of 10:

(2 × 10^(-3)) - (2.17 × 10^(-5)) = (2 × 10^(-3)) - (0.0217 × 10^(-3))

Now we can subtract the coefficients (numbers in front of 10^(-3)):

2 - 0.0217 = 1.9783

The result is 1.9783 × 10^(-3) ounces.

Therefore, a grain of rice is 1.9783 × 10^(-3) ounces heavier than a strand of hair.