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wariber [46]
3 years ago
6

An athlete eats 0.2kg of protein per week while training.how much protein will she eat during 9 weeks of training write answer i

n grams
Mathematics
1 answer:
makvit [3.9K]3 years ago
4 0

Number of kg of protein an athlete eats per week = 0.2 kg.

Total number of weeks for which we need to find the number of grams of protein an athlete eats = 9 weeks.

In order to find the total number of grams of protein an athlete eats in 9 weeks, we need to multiply 0.2 by 9.

On multiplying we get

0.2 × 9 = 1.8 kg.

But we need answer in grams.

So, in order to convert kg into grams, we need to multiply 1.8 kg by 1000, we get

1.8 × 1000

= 1800 grams.

<h3>Therefore,  she will eat 1800 grams of protein during 9 weeks of training.</h3>
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R=14costheta in rectangular form
Ede4ka [16]

Answer:

  x² +y² = 14x

Step-by-step explanation:

Making the usual substitution x = r·cos(θ) and r² = x² +y², we can get there this way:

Substitute cos(θ) = x/r:

  r = 14·x/r

Multiply by r:

  r² = 14x

Substitute for r²:

  x² + y² = 14x

_____

The original equation is shown dotted; the rectangular version is shown as a solid line. The graphs are identical.

7 0
3 years ago
Read 2 more answers
an inverted cone has a height of 11 inches and an initial radius of 18 inches. the volume of the inverted cone is decreasing at
Oksi-84 [34.3K]

Answer:

  -4.697 in/s

Step-by-step explanation:

You want to know the rate of change of radius of a cone 11 inches high with a radius of 5 inches and a volume that is decreasing at the rate of 541 cubic inches per second.

<h3>Volume</h3>

The volume of a cone is given by ...

  V = π/3r²h

The rate of change is found by implicit differentiation:

  V' = (π/3)((2rr')h +r²h')

Here, the height is constant, so h' = 0. Solving for r', we find ...

  r' = 3V'/(2πrh)

<h3>Application</h3>

Using the given values of V', r, and h, we find the rate of change of radius to be ...

  r' = 3(-541 in³/s)/(2π(5 in)(11 in)) = -1623/(110π) in/s ≈ -4.69652 in/s

The radius is decreasing at about -4.697 inches per second.

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<em>Additional comment</em>

The initial radius of the cone is irrelevant to the problem, since we want to know the rate of change at a specific different radius. Whether the cone is inverted or not is also irrelevant to its volume.

3 0
1 year ago
A rocket is launched vertically from the ground with an initial velocity of 56 ft/sec
PSYCHO15rus [73]
<h3>Answer:</h3>

y = 17x - 4.5x²

height = 16m at 2 sec

total time = 3.77 sec

<h3>Step-by-step explanation:</h3>

Given the initial velocity of rocket  = 56ft/sec

We use newton formula

<h3 /><h3>s = ut + 1/2at²</h3><h3>where s = distance</h3>

             u = initial velocity

             t= time

             a = acceleration due to gravity = 9.8m/s²

since the rocket is launched upward, it is against the gravity so a = -9.81.

56 feet  = 17.0688 = 17

suppose s = height = y and time = x

y = 17x - 1/2(9.81)x²

or

y = 17x - 4.5x²

b)

as x can not be negative so domain will be from 0 to 3.78

put value of x to find value of y and then plot these on graph

This graphs will be a parabola which opens downward.

c)

at 2 sec, y value is greatest = 16 meters

time for which rocket was in the air = 3.77sec

5 0
3 years ago
Read 2 more answers
The radius of a circle is 70 centimeters.
notka56 [123]

Answer:

439.82cm

Step-by-step explanation:

8 0
3 years ago
Is it possible for the total volume to be less than the height of the object?
Anni [7]

The answer is no. i hope this helps you!

4 0
3 years ago
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