T=34xP
T= tip for him
P= percent he charges for tip
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
#SPJ1
Answer:
120 sq. units
plus them all and add 100
Answer: y = 3+b
Step-by-step explanation:
Hi, to answer this question we have to write an equation:
y = x + b
Where:
y = total number of ceramic cats
x = actual number of ceramic cats
b=new ceramic cats bought
Replacing with the value given:
y = 3+b
Where y is the dependant variable and b the independent variable.
Feel free to ask for more if needed or if you did not understand something.
5.6271428571 sorry but my explanation is a way i only can understand it sorry