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Romashka-Z-Leto [24]
3 years ago
11

PLEASE ANSWER:Which of the following are examples of exponential growth? Select all that apply Shasta increases the amount she s

aves each month by 5%. The population over the last decade of the Black Rhino is such that it is nearing extinction. A tennis tournament starts with 64 participants. Each round, half the players are eliminated. The amount of cell phone subscribers in a small town increases by 75% each year. The price of a stock goes up 12% each year.
Mathematics
2 answers:
Monica [59]3 years ago
4 0
Answers: Shasta increases the amount she saves each month by 5%. The amount of cell phone subscribers in a small town increases by 75% each year.The price of a stock goes up 12% each year. 
Exponential growth consistently raises the base amount/number to a certain degree. The above answers increase a digit by a number of percentage steadily over a period of time. 
Anna35 [415]3 years ago
3 0

Answer: Shasta increases the amount she saves each month by 5%.

The amount of cell phone subscribers in a small town increases by 75% each year.

The price of a stock goes up 12% each year.

Step-by-step explanation:

The exponential growth happens when a given quantity increases by the constant rate of proportion in each given time period.

  • Shasta increases the amount she saves each month by 5%.

This is an example of exponential growth with rate of increase 5%.

  • The population over the last decade of the Black Rhino is such that it is nearing extinction.

This shows decrease in population , so this cannot be example of exponential growth.

  • A tennis tournament starts with 64 participants. Each round, half the players are eliminated.

This shows decrease in participants , so this cannot be example of exponential growth.

  • The amount of cell phone subscribers in a small town increases by 75% each year.

This is an example of exponential growth with rate of increase 75%.

  • The price of a stock goes up 12% each year.

This is an example of exponential growth with rate of increase 12%.

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on day in the fall, mark raked the leaves on 5 peoples lawns in 2.5 hours. one day in the summer, he mowed 6 peoples lawns in 1.
GuDViN [60]
<h2><u><em>Ans</em></u>wer: </h2>

Assuming he works at a constant rate, the daily rate Mark rakes lawns in the fall is 40% of the daily rate he mows lawns in the summer.

<h2><u><em>Step-by-step explanation: </em></u></h2>

Fall:

5 neighbors' lawns / 2.5 hours = 2 lawns per hour

Summer:

6 neighbours' lawns / 1.2 hours = 5 lawns per hour

2 x 100% / 5 = 40%

2 is 40% of 5

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3 years ago
(2
a_sh-v [17]

Answer:

The equation is,

(x+1)^{2} \times (x+2) = 0

Step-by-step explanation:

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So, the equation is,

(x+1)^{2} \times (x+2) = 0

[Since, when a , b , c are the roots of a cubic equation, the equation is

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3 0
3 years ago
Suppose a student's score on a standardize test to be a continuous random variable whose distribution follows the Normal curve.
blsea [12.9K]

Answer:

a) Percentage of students scored below 300 is 1.79%.

b) Score puts someone in the 90th percentile is 638.

Step-by-step explanation:

Given : Suppose a student's score on a standardize test to be a continuous random variable whose distribution follows the Normal curve.

(a) If the average test score is 510 with a standard deviation of 100 points.

To find : What percentage of students scored below 300 ?

Solution :

Mean \mu=510,

Standard deviation \sigma=100

Sample mean x=300

Percentage of students scored below 300 is given by,

P(Z\leq \frac{x-\mu}{\sigma})\times 100

=P(Z\leq \frac{300-510}{100})\times 100

=P(Z\leq \frac{-210}{100})\times 100

=P(Z\leq-2.1)\times 100

=0.0179\times 100

=1.79\%

Percentage of students scored below 300 is 1.79%.

(b) What score puts someone in the 90th percentile?

90th percentile is such that,

P(x\leq t)=0.90

Now, P(\frac{x-\mu}{\sigma} < \frac{t-\mu}{\sigma})=0.90

P(Z< \frac{t-\mu}{\sigma})=0.90

\frac{t-\mu}{\sigma}=1.28

\frac{t-510}{100}=1.28

t-510=128

t=128+510

t=638

Score puts someone in the 90th percentile is 638.

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you borrow $90 from your grandmother. You pay back $15 each week. write an equation in standard form that represents the amount
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Answer:

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x being the number of weeks

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<span>C(x)=2268 means that the cost of </span><span>​manufacture​ 63 chairs is 2268$.

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</span>
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