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Alisiya [41]
2 years ago
5

The music store sold 12 trumpets and 19 clarinets last month. Write an equation to show the amount of money earned on trumpet an

d clarinet sales last month's. Define your variables.
Advanced Placement (AP)
2 answers:
nignag [31]2 years ago
7 0
12c+19t=e

C = cost per clarinet
T= cost per trumpet
E= total money earned
ololo11 [35]2 years ago
7 0

Answer:

12t + 19c

where t = selling price of trumpets and

c = selling price of clarinet

Explanation:

Let t be the selling price per unit for trumpets and c be the selling price per unit for clarinet.

Given that the music store sold 12 trumpets and 19 clarinets

Therefore,

Money earned from sale of trumpets = 12t

Money earned from sale of clarinets = 19c

Total amount earned last month = 12t + 19c

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Kathy and her brother Clay recently ran in a local marathon. The distribution of finishing time for women was approximately norm
xxMikexx [17]

Answer:

<u>The proportion of women who ran the marathon and had a finishing time less than Kathy's is 66% (rounding to the next whole)</u>

Explanation:

1. Let's review the information given to us to answer the question properly:

μ of finishing time for women = 259 minutes

σ of finishing time for women = 32 minutes

Finishing time for Kathy = 272 minutes

2. What proportion of women who ran the marathon had a finishing time less than Kathy's? Show your work.

Let's calculate the z-score for the finishing time for Kathy, as follows:

z-score = (272 - 259)/32

z-score = 13/32 = 0.41 (rounding to the next hundredth)

Using the z-table, now we can calculate the proportion of women who ran the marathon had a finishing time less than Kathy's:

p (z=0.41) = 0.6591

<u>The proportion of women who ran the marathon and had a finishing time less than Kathy's is 66% (rounding to the next whole)</u>

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2 years ago
A country develops new technologies for farming, which help stabilize and increase food supply. According to Malthusian theory,
murzikaleks [220]

Answer:

B. The new technologies would reduce positive checks on population.

Explanation:

Since there would be better and more efficient methods of farming that would reduce the positive checks that happen to the population. The positive checks would at first be a lot less impactful than before the technology. Disease and natural disasters would not cripple a population until it grows to a much larger number.

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Compare and contrast the retina’s two photoreceptor cells, and explain the role rhodopsin plays in vision
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Photoreceptors are responsible for visual phototransduction. They convert light into biological signals. In humans, rods, cone, and retinal ganglion cells are the 3 main photoreceptors.
Rods are narrow and are present throughout the retina. They are very sensitive, They can be triggered by a single photon also. They are responsible for the visuals we get in the low-light conditions.
Cons need a high number of photons, in order to produce signals. They are responsible for visualization of colors. 
Rhodopsin is the pigment molecule of the rod cells. It is very sensitive to the light, and enables visualization in dim lights.
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A private cloud can actually be less secure than a public cloud. Although public clouds are a great target for hackers, it is very important to understand that information is not secure in a private cloud. There are many legal problems concerning security. Security procedures are generally non-existent. Confidential data may be out of range, and physical security functions can expose their data to various threats.

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I don't know what the answer
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