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Nat2105 [25]
3 years ago
6

The height of a 12 year old boy increased by 17% last year and by 12% this year. What is the total increase in percent terms?

Mathematics
2 answers:
telo118 [61]3 years ago
5 0
The answer is percentages would be 29% because 17+12=29
OverLord2011 [107]3 years ago
3 0
He increased by 29% because you just add up the percentage 


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lys-0071 [83]

Answer:

It's B. n3 - 4n - 4

Step-by-step explanation:

Hope this helps.. ;)

8 0
2 years ago
Plant A: A graph has time (weeks) on the x-axis, and height (inches) on the y-axis. A line goes through points (0, 3), (1, 4.8),
butalik [34]

Answer:

The correct option is;

No, The greater rate of change of Plant A will result in it being 0.9 inches taller in 6 weeks

Step-by-step explanation:

The parameters given are;

Plant A:

Weeks,    Height

0,               3

1,                4.8

2,               6.6

3,               8.4

The rate of change of height, H per week, t,\left (\dfrac{dH}{dt} \right )  for plant A per week is therefore;

\dfrac{dH}{dt} =  \dfrac{H_n - H_{(n-1)} }{t_n - t_{(n-1)}} = \dfrac{8.4 - 3 }{3 - 0} = \dfrac{5.4}{3} = 1.8 \ inches/week

Therefore we have;

H = 1.8 × t + 3

At week 6,

H = 3 + 6×1.8 = 13.8 inches

Plant B

Weeks,    Height

2,               7.3

3,               8.7

4,               10.1

The rate of change of height, H per week, t,\left (\dfrac{dH}{dt} \right )  for plant B per week is given as follows;

\dfrac{dH}{dt} =  \dfrac{H_n - H_{(n-1)} }{t_n - t_{(n-1)}} = \dfrac{10.1 - 7.3 }{4 - 2} = \dfrac{2.8}{2} = 1.4 \ inches/week

Therefore we have;

When t = 2, H = 7.3 hence, 7.3 = 2 × 1.4 + H₀

Where:

H₀ = H at t = 0

H₀ = 7.3 - 2 × 1.4 = 4.5

At week 6 we have;

H = 4.5 + 6×1.4 = 12.9 inches

Which indicates that Plant A will be 0.9 inches taller than Plant B at week 6.

The correct option is therefore;

No, The greater rate of change of Plant A will result in it being 0.9 inches taller in 6 weeks.

5 0
3 years ago
Read 2 more answers
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rjkz [21]
Whole number
integer
natural number
rational
4 0
3 years ago
<img src="https://tex.z-dn.net/?f=2sin%5E%7B2%7D%20x%20-%20%282%5Csqrt2%20%2B%5Csqrt3%20%29%20sinx%20%3D%5Csqrt%7B6%7D%20%3D0" i
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Answer:

Try an Scientific Calculator You'll Get That In No time

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7. There are 15 printers in one department. If 2/5 are color printers, how many can only print black and
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The correct answer is B. 9
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