Answer:
wea did tha r come from??
Step-by-step explanation:
it is supposed to be d
Children = .65 * people
people = 520 / .65
800 people were in attendance
By knowing the <em>blood</em> pressure and applying the <em>quadratic</em> formula, the age of a man whose normal <em>blood</em> pressure is 129 mm Hg is 40 years old.
<h3>How to use quadratic equations to determine the age of a man in terms of blood pressure</h3>
In this problem we have a <em>quadratic</em> function that models the <em>blood</em> pressure as a function of age. As the latter is known, we must use the quadratic formula to determine the former:
129 = 0.006 · A² - 0.02 ·A + 120
0.006 · A² - 0.02 · A - 9 = 0

A = 1.667 + 38.733
A = 40
By knowing the <em>blood</em> pressure and applying the <em>quadratic</em> formula, the age of a man whose normal <em>blood</em> pressure is 129 mm Hg is 40 years old.
To learn more on quadratic equations: brainly.com/question/1863222
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Answer:
Option 2
Step-by-step explanation:
Because it shows that it is going up in a half not a whole.
Answer:
2b
Step-by-step explanation:
Identify the greatest common factors of 2 and 6, the answer is 2
identify the greatest common between b^2 and b, the answer is b
ao therefore the greatest common factor is 2b.