Question

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

Choose the best approximation of the mass of a worker bee.
Choose 1 answer:
Choose 1 answer:

(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 1

Answer:

1). Option (A)

2). Option (A)

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.

Explanation: