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Maslowich
2 years ago
8

Round the answer to the nearest

Mathematics
1 answer:
kykrilka [37]2 years ago
4 0

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 = \frac{0.02 \pm \sqrt{0.006^{2}-4\cdot (0.006)\cdot (- 9)}}{2\cdot (0.006)}

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

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elixir [45]

Answer:

2500

Step-by-step explanation:

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7 0
3 years ago
On a multiple choice test with 17 questions, each question has four possible answers, one of which is correct. For students who
Ira Lisetskai [31]
<h2>The required "option c) 4.3" is correct.</h2>

Step-by-step explanation:

Given,

Total number of multiple choice questions = 17

To find, the mean for the number of correct answers = ?

Each question has four possible answers.

If guessing at random:

There is only one in four chances.

\dfrac{1}{4}\times 100 =  25 % chance of getting a particular question right.

This is the same probability for each of the 17 questions.

If there is a 25 % chance of getting any given question right.

There are 17 questions.

∴ The total number of questions you will expect to get right =

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= \dfrac{25}{100} \times 17

= \dfrac{17}{4}

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∴ The mean for the number of correct answers = 4.3

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3 0
4 years ago
If the center thickness of a lens variés more than 0.150 millimeter from the target thickness of 5.000 millimeters, the lens can
Mice21 [21]

Answer:

All real numbers greater than or equal to 4,999.85 millimeters and less than or equal to 5,000.15 millimeters

Step-by-step explanation:

Let

x -----> values for the center thickness of the lens

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The absolute value that represent this problem is

\left|x-5,000\right|\le 0.150

Solve the absolute value

First case (positive)

+(x-5,000)\le 0.150

Adds 5,000 both sides

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Second case (negative)

-(x-5,000)\le 0.150

Multiply by -1 both sides

(x-5,000)\ge -0.150

Adds 5,000 both sides

x\ge -0.150+5,000

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All real numbers greater than or equal to 4,999.85 millimeters and less than or equal to 5,000.15 millimeters

8 0
3 years ago
Y=-6x+5 and y=-6x-6 pair of lines is parallel, perpendicular, or neither?
Alex73 [517]

Answer:

parallel

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adelina 88 [10]
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