We can separate this into three parts.
20/4 = 5
B^2/b= b
C^3/c = c^2
Therefore, the answer is 5bc^2
The answer is 71 since you count from the tenth space. So the first significant figure would be 7 and the second significant figure would be 0. As we know that we round up one number of the previous number is 5 or bigger.
Answer:
29.8 × 10⁸
Step-by-step explanation:
The average life span for human is 79 years
And healthy heart beats 72 times a minute
Now,
Total number of minutes in 79 years = 79 × 365 × 24 × 60
therefore,
The total number of times heart beats in the life span
= 72 × 79 × 365 × 24 × 60
= 2989612800 times
now, to convert it into an answer with 10⁸
divide the result with 10⁸
Hence,
The total number of times heart beats in the life span = 29.8 × 10⁸ times
The equation that represents a proportional relationship is m = -0.5b
<h3>
Proportional relationship</h3>
Two variables are said to be proportional if an increase in one variable leads to an increase in other variable and a decrease in one variable leads to an decrease in other variable.
Given that m ∝ b
m = kb
When m = 3, b = -6, hence:
3 = -6k
k = -0.5
m = -0.5b
Find out more on Proportional relationship at: brainly.com/question/15400901