A = 0.1
B = 50.9
These are rounded to the nearest tenth
Answer:
xˆ2+10x+9
Step-by-step explanation:
first, multiply x by x and by 1, that would be (xˆ2 and x), then multiply 9 by x and 1, that would be( 9x and 9), add the two parenthesis, and it totals out to xˆ2+10x+9
Answer:
The pulse rate is 84.54bpm
Step-by-step explanation:
Given

Required
Find
when 
Substitute 71 for x in: 



<em>The pulse rate is 84.54bpm</em>