Answer:
Hello, Otaku Kun Here! >:3
Explanation:
What Best describes the advantage of using the model of a food web? 1. Shows feeding connections 2. Explains every detail of wildlife 3. Shows a complex mental model 4. Represents data collected from space
<em>hope this helps!</em>
<em>from: Otaku Kun! ^^</em>
The correct number of significant figures and digits is 3
Answer:
You can find the volume of an irregular object by immersing it in water in a beaker or other container with volume markings, and by seeing how much the level goes up.
Explanation:
How is the activity of a radioactive sample measured? In terms of the number of nuclear disintegrations per second. The Curie (Ci) is the unit used commonly, the Becquerel is the SI unit. The number of nuclear disintegrations that occurs in 1 second for 1 gram of radium, which is 3.7 x 10^10 disintegrations.
Answer:
3 × 10¯¹⁰
Explanation:
9×10² ÷ 3×10¹²
The above expression can be evaluated as follow:
9×10² ÷ 3×10¹²
Recall:
3² = 9
3¹ = 3
Therefore,
9×10² ÷ 3×10¹² = 3²×10² ÷ 3¹×10¹²
Recall:
y^m ÷ y^n = y^(m – n)
Therefore,
3²×10² ÷ 3×10¹² = 3²¯¹ × 10²¯¹²
= 3¹ × 10¯¹⁰
Recall:
y¹ = y
Therefore,
3¹ × 10¯¹⁰ = 3 × 10¯¹⁰
Therefore,
9×10² ÷ 3×10¹² = 3 × 10¯¹⁰
