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viva [34]
3 years ago
7

I Need help with this. I'm struggling :/

Mathematics
1 answer:
Setler [38]3 years ago
7 0
The answer to this question would be 1.) D
2.) B, 3.)C
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An older method of estimating body fat percentage was to measure a person's average density (total mass divided by total volume)
timofeeve [1]

If the density of the man is 1.0321 grams per cubic cm. Then the body fat percentage will be 28.59%.

<h3>What is a function?</h3>

The function is an expression, rule, or law that defines the relationship between one variable to another variable. Functions are ubiquitous in mathematics and are essential for formulating physical relationships.

An older method of estimating body fat percentage was to measure a person's average density (total mass divided by total volume) and apply a formula to convert it to a body fat percentage.

\rm BF = \left (\dfrac{4.57}{p} - 4.142 \right) \times 100

where BF = body fat and p = density in g/cm3 A man weighs 175 pounds.

A man weighs 175 pounds.

His total body volume is modeled by a cylinder with a height of 170 cm and a radius of 12 cm.

Then the density will be

\rm p = \dfrac{175 \times 453.592}{\pi \times 12^2 \times 170}\\\\p = \dfrac{79378.7}{76906.19}\\\\p= 1.0321 \ g/cm^3

Then the Body fat percentage will be

\rm BF = \left (\dfrac{4.57}{1.0321} - 4.142 \right) \times 100 \\\\\\BF = 0.2859 \times 100\\\\\\BF = 28.59\%

More about the function link is given below.

brainly.com/question/5245372

#SPJ1

8 0
2 years ago
Which expression is equivalent to 30 (one-half x minus 2) + 40 (three-fourths y minus 4)? 45 x y minus 220 15 x minus 30 y minus
antoniya [11.8K]

Answer:

The third option is correct i.e. 15 x + 30 y minus 220.

Step-by-step explanation:

We have to choose expression from the option that is equivalent to

30(\frac{1}{2}x - 2) + 40(\frac{3}{4}y - 4)

Now, 30(\frac{1}{2}x - 2) + 40(\frac{3}{4}y - 4)

= 15x - 60 + 30y - 160

= 15x + 30y - 220

Therefore, the third option is correct i.e. 15 x + 30 y minus 220. (Answer)

5 0
3 years ago
Read 2 more answers
What is the slope-intercept equation for the line below?
Maksim231197 [3]

Answer:

y = 2/5x+2

Step-by-step explanation:

First find the slope

m = (y2-y1)/(x2-x1)

    = (4-2)/(5-0)

    =2/5

The y intercept is 2

The slope intercept form is y = mx+b

where m is the slope and b is the y intercept

y = 2/5x+2

3 0
3 years ago
Read 2 more answers
How do i factor 2y^2+y-10
Leokris [45]
2y^2+y-10
(2y+5)(y-2)
4 0
3 years ago
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Solve for x………………………
k0ka [10]

4×11+1=45

A+B+C=180 60+75+C=180 180_130=c c=45

4 0
3 years ago
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