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3 years ago

Almost of the mass of the human body is made up of just six elements.

Mathematics

1 answer:

Vesnalui [34]3 years ago

4 0

Answer:

Step-by-step explanation:

To solve each of these all you have to do is multiply 60kg which is the whole mass of a human body times the percentage so..

Oxygen = (0.65)(60) = 39kg

Carbon = (0.18)(60) = 10.8kg

Hydrogen = (0.10)(60) = 6

Nitrogen = (0.03)(60) = 1.8kg

Calcium = (0.015)(60) = 0.9kg

Phosphorus = (0.01)(60) = 0.6kg

These numbers dont exactly add up to 60 because the percentages gives dont add up to 100%, but this is how to do it.

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Given the following two points, find the Rate of Change for the function.<br> (-2,-1) and (4,5)

horsena [70]

Answer:

(6, 6)

Step-by-step explanation:

(x) 4-(-2) = 6

(y) 5-(-1)= 6

5 0

3 years ago

The first picture is the graph (already answered) and the second is the next

Nastasia [14]

Answer:

a) 100/15 = 6.6667 = 6 2/3

b) C = T( 6 2/3)

= T (6 + 2/3)

C = 1T x 6 2/3

= 6 2/3 T

We can show T as time at end of equation or start of brackets

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2 years ago

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Function f is shown on the graph below where two points are marked. If function f is horizontally compressed by a factor of 2, p

lilavasa [31]

Answer:

If you have

$f(x) = x^2$

The point (2,4) would be transformed to (1,1)

Step-by-step explanation:

If your compression is horizontal then the transformation you are making is the following

$g(x) = f(x/2)$

Therefore, if you have

$f(x) = x^2$

The point (2,4) would be transformed to (1,1)

5 0

3 years ago

Suzanne needs material for her school project. She buys 5.50 yards of material at $3.87 a yard. What is the total cost of the ma

ASHA 777 [7]

5.50
x 3.87
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3 years ago

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You have 100 feet of fencing and decide to make a rectangular garden. What is the largest area enclosed

k0ka [10]

Answer:

625 ft^2

Step-by-step explanation:

Given

$P = 100$ --- perimeter

Required

The largest area

The perimeter is calculated as:

$P = 2 * ( L + W)$

So, we have:

$2 * ( L + W) = 100$

Divide both sides by 2

$L + W = 50$

Make L the subject

$L = 50 - W$

The area is calculated as:

$A= L * W$

Substitute $L = 50 - W$

$A= (50 - W) * W$

Open bracket

$A = 50W - W^2$

Differentiate with respect to W

$A' = 50 -2W$

Set to 0; to get the maximum value of W

$50 - 2W = 0$

Collect like terms

$-2W = -50$

Divide by -2

$W = 25$

So, the maximum area is:

$A = 50W - W^2$

$A = 50 * 25 - 25^2$

$A = 1250 - 625$

$A = 625$

3 0

3 years ago