Question

A worker bee has a mass of 0.00011 \text{ kg}0.00011 kg0, point, 00011, start text, space, k, g, end text.

Answer 1

Answer:

Step-by-step explanation:

Choice A)

A

1 \cdot 10^{-4}\text{ kg}1⋅10

−4

kg1, dot, 10, start superscript, minus, 4, end superscript, start text, space, k, g, end text

(Choice B, Checked)

B

1 \cdot 10^{-3}\text{ kg}1⋅10

−3

kg1, dot, 10, start superscript, minus, 3, end superscript, start text, space, k, g, end text

An African elephant has a mass of 8139 \text{ kg}8139 kg8139, start text, space, k, g, end text.

Choose the best approximation of the mass of an African elephant.

Choose 1 answer:

Choose 1 answer:

(Choice A, Checked)

A

8 \cdot 10^{3}\text{ kg}8⋅10

3

kg8, dot, 10, cubed, start text, space, k, g, end text

(Choice B)

B

8 \cdot 10^{4}\text{ kg}8⋅10

4

kg8, dot, 10, start superscript, 4, end superscript, start text, space, k, g, end text

Approximately how many times as large is the mass of an African elephant as the mass of a worker bee?

Choose 1 answer:

Choose 1 answer:

(Choice A)

A

8\cdot 10^68⋅10

6

8, dot, 10, start superscript, 6, end superscript

(Choice B)

B

8\cdot10^78⋅10

7

8, dot, 10, start superscript, 7, end superscript

(Choice C)

C

8\cdot10^88⋅10

8

Answer 2

Answer:

Answer:

1). Option (A)

2). Option (A)

Step-by-step explanation:

1). A worker bee has the mass = 0.00011 kg

  In scientific notation we can convert the mass of bee as,

  0.00011 =

                =

  Since 1.1 ≈ 1,

  Therefore, 1.1 × 10⁻⁴ ≈ 1 × 10⁻⁴ kg

  Option (A) is the answer.

2). An African elephant has a mass = 8139 kg

   In scientific notation,

   8139 = 8.139 × 10³

   Since, 8.139 ≈ 8

   Therefore, 8139 kg = 8.139 × 10³ kg

   Option (A) is the answer.

Step-by-step explanation: