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3 years ago

7

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

2 answers:

Vladimir [108]3 years ago

8 0

Answer:

A

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]3 years ago

7 0

Answer:

exponential growth

Step-by-step explanation:

the star is getting brighter exponentially, every 10 yrs.

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Answer:

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Step-by-step explanation:

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3 years ago

For the following pair of functions, find (f+g)(x) and (f-g)(x).

ch4aika [34]

Given:

The functions are

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To find:

The functions $(f+g)(x)$ and $(f-g)(x)$ .

Solution:

We know that,

$(f+g)(x)=f(x)+g(x)$

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And,

$(f-g)(x)=f(x)-g(x)$

$(f-g)(x)=(4x^2+7x-5)-(-9x^2+4x-13)$

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3 years ago

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3 years ago

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Step-by-step explanation:

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3 years ago

Third degree, with zeros of -3,-2, and 1, and passes through the point (2,11)<br><br> P(x)=

Soloha48 [4]

Answer:

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Step-by-step explanation:

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3 years ago