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borishaifa [10]
4 years ago
7

At 12:00 AM (hour 0 of the day) the tide at a certain beach was at its lowest level of the day: 1.0 feet. At 6:00PM (hour 18 of

the day) the tide at a certain beach was at its highest level of the day: 2.0 feet. Assuming that this tide follows a sinusoidal model, about how high would you expect the tide to be at noon?​

Mathematics
1 answer:
tankabanditka [31]4 years ago
5 0

Answer:

<h2>At noon the tide will be at the lowest point which is 1 ft                                        </h2>

Step-by-step explanation:

please see attached a sketch of the solution for your reference

What is a sinusoidal wave?

Alternatively called a sine wave is a type of wave that shows a repetitive pattern or oscillation, it normally starts from a low point moves to the next point which is usually higher than the previous and repeats itself as the whole process continues

                         

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Please help thank you.
Wittaler [7]
30 60 90 right triangle
leg = 6 so other leg = 6√3

A = (1/2)(6+6)( 6√3+ 6√3)
A = 6 (12√3)
A = 72√3

answer is D
72√3

7 0
4 years ago
Please help I will mark you as brainliest
Nezavi [6.7K]

Answer:

7986 m²

Step-by-step explanation:

The figure is a trapezium with area (A) calculated as

A = \frac{1}{2} h (a + b)

where h is the height and a, b the parallel bases

Here h = 66, a = 102 and b = 140, thus

A = \frac{1}{2} × 66 × (102 + 140) = 33 × 242 = 7986 m²

4 0
3 years ago
Select all of the expressions that are equivalent to 4 + w + 12w
andrew11 [14]

Answer:

Step-by-step explanation:

the selections that are equivalent to 4 + w + 12:

1st and 3rd

5 0
3 years ago
What is CA in the figure
Snowcat [4.5K]

Answer:

The answer is D good luck :)

8 0
4 years ago
3) For a certain good we have LaTeX: q=f\left(p\right)=200e^{-0.4p}q = f ( p ) = 200 e − 0.4 p.
disa [49]

Answer:

(a)20

(b)Elastic

(c)8

(d) Elastic

Step-by-step explanation:

Elasticity of demand(E) indicates the impact of a price change on a product's sales.

The general formula for an exponential demand curve is given as:

y=ae^{-bp}

Given the demand curve formula

q=f\left(p\right)=200e^{-0.4p}

The formula for Elasticity of demand, E

E = -\dfrac{p}{q}\dfrac{\text{d}q}{\text{d}p}

(a)When Price,  p = $50

p=50

q=200e^{-0.4*50}=200e^{-20}

\dfrac{\text{d}q}{\text{d}p}=-0.4*200e^{-0.4p}=-80e^{-0.4p}

Therefore:

E = -\dfrac{50}{200e^{-20}}*-80e^{-0.4*50}\\=\dfrac{1}{4e^{-20}}*80e^{-20}\\\\E=20

(b)At p = $50, Since elasticity is greater than 1, the demand is elastic.

An elasticity value of 20 means that a 1% increase in price causes a 20% decrease in demand.

(c)At p=$20

p=20

q=200e^{-0.4*20}=200e^{-8}

\dfrac{\text{d}q}{\text{d}p}=-0.4*200e^{-0.4p}=-80e^{-0.4p}

Therefore:

E = -\dfrac{20}{200e^{-8}}*-80e^{-0.4*20}\\=\dfrac{1}{10e^{-20}}*80e^{-20}\\\\E=8

(d)At p = $20, the demand is elastic.

An elasticity value of 8 means that a 1% increase in price causes a 8% decrease in demand.

5 0
4 years ago
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