A is 264 and B is 257 because 785-778=7. so you add 7 to 785 and get 792 then divide by 3, to find candy A. <span>so you subtract 7 from 778 and get 771 then divide by 3, to find candy B. </span>
58 miles per hour, because you would divide 145 by 2.5 to get how many miles were covered in one hour
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:
-3.4 = (-17
/5) = -3 2/5
Step-by-step explanation: