Calculate the value of the following in exponential form, using standard scientific or "e" notation (for example, 105 = 1.05e2). Enter your answer with the correct number of significant figures.

885.75 g + 10.151 g - 25.50 g

Calculate the value of the following in exponential form, using standard scientific or "e" notation (for example, 105 = 1.05e2). Enter the correct number of significant figures.

(2.700e2 cm)3 / (1.20e3 cm)2

Calculate the value of the following in exponential form, using standard scientific or "e" notation (for example, 105 = 1.05e2). Enter the correct number of significant figures.

95.8 g + 25.555 g + 37.60 g

Anica and her friends are organizing a trip to the skateboarding championships.The bus they will rent to take them there and back will cost $500. Anica estimates that each person will spend $40 for meals and souvenirs.

If p People go on the trip, what will be the total cost for travel,meals,and souvenirs?

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1.

The least precise number has 4 significant figures, so the answer can be presented to 4 or 5 significant figures for intermediate calculations, and in this particular case where the least significant number is a small number).

885.75 g + 10.151 g - 25.50 g
=870.40
=8.7040e2

Give a try to #2 and #3. Post for confirmation if you wish.

To calculate the value of the given expressions in exponential form, we'll follow these steps:

For the first expression:
1. Add the given values: 885.75 g + 10.151 g - 25.50 g = 870.401 g (rounded to the correct number of significant figures)
2. Express the result in scientific or "e" notation. In scientific notation, the decimal point is placed after the first non-zero digit, and the number is multiplied by a power of 10 to represent the original value.
For 870.401 g, we move the decimal point 2 places to the left to get 8.70401 g, and multiply it by 10^2 since we moved the decimal point two places.
Therefore, the exponential form is 8.70401e2 g.

For the second expression:
1. Cube the value of 2.700e2 cm: (2.700e2 cm)^3 = (2.700e2 cm)*(2.700e2 cm)*(2.700e2 cm) = 198.918e6 cm^3 (rounded to the correct number of significant figures).
2. Square the value of 1.20e3 cm: (1.20e3 cm)^2 = (1.20e3 cm)*(1.20e3 cm) = 1.44e6 cm^2 (rounded to the correct number of significant figures).
3. Divide the result from step 1 by the result from step 2: 198.918e6 cm^3 / 1.44e6 cm^2 = 138.00625 (rounded to the correct number of significant figures).
4. Express the result in exponential form: 138.00625 = 1.38e2 (rounded to the correct number of significant figures).
Therefore, the exponential form is 1.38e2.

For the third expression:
1. Add the given values: 95.8 g + 25.555 g + 37.60 g = 158.955 g (rounded to the correct number of significant figures).
2. Express the result in scientific or "e" notation. In scientific notation, the decimal point is placed after the first non-zero digit, and the number is multiplied by a power of 10 to represent the original value.
For 158.955 g, we move the decimal point 2 places to the left to get 1.58955 g, and multiply it by 10^2 since we moved the decimal point two places.
Therefore, the exponential form is 1.58955e2 g.

Summary:
1. 885.75 g + 10.151 g - 25.50 g = 8.70401e2 g
2. (2.700e2 cm)^3 / (1.20e3 cm)^2 = 1.38e2
3. 95.8 g + 25.555 g + 37.60 g = 1.58955e2 g

for #2 it's

((2.70000e2 cm)^3) / ((1.20e3 cm)^2) = 13.66875 centimeters