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4 years ago

100 POINTS PLS HELP !!! A star becomes twice as bright every 10 years

Mathematics

2 answers:

Vladimir [108]4 years ago

8 0

Answer:

Step-by-step explanation:

"Twice" as bright can translate into the mathematical expression "times 2", where for every year, you multiply the previous year's brightness by 2.

Since this is a rate (using multiplication) and not a common difference (not using addition), it must be an exponential <em>something</em>, so eliminate C.

Now, since 2 > 1, that means this is an exponential growth. Remember that if the rate r is less than 1, then it's decay; if r is greater than 1, then it's growth.

The answer is thus A.

seropon [69]4 years ago

7 0

Answer:

exponential growth

Step-by-step explanation:

the star is getting brighter exponentially, every 10 yrs.

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wariber [46]

Answer:

Domain: x $\leq$ 8

Step-by-step explanation:

All real numbers minors than or equal to 8

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2 years ago

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Solve the system of equations by elimination. HELP ASAP!!

ivann1987 [24]

Answer:

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Step-by-step explanation:

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4 years ago

The intensity of a radio signal from the radio station varies inversely as the square of the distance from the station. suppose

spayn [35]

Answer:

The ratio of the new distance to the old distance is (11/2) .

The intensity is inversely proportional to the square of the distance,

so the new intensity will be (2/11)² times the old intensity.

Intensity = 8,000 (2/11)² =

32,000 / 121 = 262.463 units

Rounded to the nearest whole unit: 262 units

Step-by-step explanation:

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2 years ago

a bank advertises a 2/1 ARM at 5.15% with a 2/6 cap. what is the maximum interest rate that can be charged during the fifth year

NISA [10]

5.15 + 2 is bigger than 6%

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3 years ago

The average number of accidents is 3 per month, what is the probability of 1 accident?

tatuchka [14]

<h2>Hello!</h2>

The answer is: 33.33%

Since we have the average number of accidents that occurs in 1 month, and it's equal to 3, we can calculate the probability of 1 accident occurs by dividing it into the average number of accidents, using the following formula:

$Probability=\frac{FavorableOutcomes}{Outcomes}*100$

Where,

Favorable outcomes are the occurrence of the event, for this case, it's equal to 1.

Outcomes are the possible occurrence of the event, for this case, it's equal to 3.

So, by substituting we have:

$Probability=\frac{1}{3}*100$

$Probability=0.3333*100=33.33$

So, the probability will be equal to 33.33%

Have a nice day!

7 0

4 years ago