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3 years ago

HELP!!!!!!!!!!!!!!!

Advanced Placement (AP)

2 answers:

Shtirlitz [24]3 years ago

5 0

Hey, got any grapes?

marta [7]3 years ago

4 0

Answer:

"HEY! Got any grapes???"

Explanation:

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Participants in the experimental condition would be identified as those who

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The answer I believe would be A

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2 years ago

How do religious and ethnic groups both reflect and influence the geography of places at different

Ivanshal [37]

Answer:

Religious and ethnic groups both reflect and influence the geography of places at different scales since human beings, who are ultimately the ones who give geography its cultural and social component, tend to group together in specific places, depending on their similarities and its adaptability to environmental conditions. Thus, for example, in Canada French speakers tend to cluster in the province of Quebec and, to a lesser extent, in northern Ontario. This affects the political geography of the place, since it makes the official language of Quebec French and not English, which is the official language of the rest of the country.

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2 years ago

Why do Mir and the Space Shuttle employ the low-earth orbit

Assoli18 [71]

I think the answer is A

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3 years ago

1. The rate at which people enter a movie theater on a given day is modeled by the function S defined by S(t) = 80 -12 cos 6 The

Arlecino [84]

Hi there!

To find the total amount of people that have ENTERED by t = 20, we must take the integral of the appropriate function.

$\text{Amount that entered} = \int\limits^{20}_{10} {S(t)} \, dt \\\\ = \int\limits^{20}_{10} {80 - 12cos(\frac{t}{5})} \, dt$

Evaluate using a calculator:

$= 899.97 \approx \boxed{900\text{ people}}$

To solve, we can find the total amount of people that have entered of the interval and subtract the total amount of people that have left from this value.

In other terms:
$\text{Amount of people} = \int\limits^{20}_{10} {S(t)} \, dt - \int\limits^{20}_{10} {R(t)} \, dt$

We can evaluate using a calculator (math-9 on T1-84):

$\text{\# of people} = \int\limits^{20}_{10} {80-12cos(\frac{t}{5})} \, dt - \int\limits^{20}_{10} {12e^{\frac{t}{10}}+20} \, dt$

$= 899.97 - 760.49 = 139.47 \approx \boxed{139 \text{ people}}$

If:
$P(t) = \int\limits^t_{10} {S(t) - R(t)} \, dt$

Then:

$\frac{dP}{dt} = P'(t)= \frac{d}{dt}\int\limits^t_{10} {S(t) - R(t)} \, dt = S(t) - R(t)$

Evaluate at t = 20:

$S(20) = 80 - 12cos(\frac{20}{5}) = 87.844\\\\R(20) = 12e^{\frac{20}{10}} + 20 = 108.669$

$S(20) - R(20) = 87.844 - 108.669 = -20.823$

This means that at t = 20, there is a <u>NET DECREASE</u> of people at the movie theater of around 20.823 (21) people per hour.

To find the maximum, we must use the first-derivative test.

Set S(t) - R(t) equal to 0:

$80 - 12cos(\frac{t}{5}) - 12e^{\frac{t}{10}} - 20 = 0\\\\60 - 12(cos(\frac{t}{5}) + e^{\frac{t}{10}})= 0$

Graph the function with a graphing calculator and set the function equal to y = 0:

According to the graph, the graph of the first derivative changes from POSITIVE to NEGATIVE at t ≈ 17.78 hours, so there is a MAXIMUM at this value.

<u>Thus, at t = 17.78 hours, the amount of people at the movie theater is a MAXIMUM.</u>

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2 years ago

Your science class is building a circuit by connecting a light bulb and a battery. The class connects these items with copper wi

skad [1K]

Answer:

Explanation:

Copper is a insulator and copper will not let electricity through

7 0

2 years ago