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Oliga [24]
2 years ago
11

John buys two types of tree saplings. One starts out at 40 cm and will grow 10 cm every three months. The other sapling starts a

t 20 cm and will grow 10 cm every month. After how many months will they be the same height, and how tall will the be
Mathematics
1 answer:
Lubov Fominskaja [6]2 years ago
5 0
Answer: theyll be the same at 12 months

y=10/3x+40
y=5x+20
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3 years ago
Outside temperature over a day can be modeled as a sinusoidal function. Suppose you know the temperature is 80 degrees at midnig
Vladimir [108]

Answer:

The equation is given by:

D(t) = 80 + 9\sin{0.2618t}

Step-by-step explanation:

Sine function:

Has the following format:

y = A\sin{bx}

In which A is the amplitude and \frac{2\pi}{b} is the period.

Suppose you know the temperature is 80 degrees at midnight and the high and low temperature during the day are 89 and 71 degrees

This means that the amplitude of the sinusoidal variation function is 89 - 80 = 80 - 71 = 9. This means that A = 9

During a 24-hour day, which means that the period is 24. So

\frac{2\pi}{b} = 24

24b = 2\pi

b = \frac{2\pi}{24}

b = 0.2618

So the variation is:

V(t) = 9\sin{0.2618t}

Assuming t is the number of hours since midnight, find an equation for the temperature, D, in terms of t.

Initial temperature of 80, so:

D(t) = 80 + V(t) = 80 + 9\sin{0.2618t}

8 0
3 years ago
Use a graph to solve this equation.<br> th<br> 2x2–5=-X? + 2x – 1
solong [7]

Answer:

X + 2= 0

X - 4  > 7

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3 years ago
Will give brainliest to first correct answer!! No links!! Help!!
andriy [413]

Answer:

the top box plot should be the way to go

8 0
3 years ago
Read 2 more answers
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Answer:

12.5 secs per meter

Step-by-step explanation:

start of average

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