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Nikitich [7]
3 years ago
10

Exponential Growth and Decay The expressions below represent either exponential growth or exponential decay. Check all the expre

ssions that represent exponential decay. 5x 3(0.75)2t 35(2.4)x 5000(1.04)3t 0.05x 500(0.005)t
Mathematics
2 answers:
Tomtit [17]3 years ago
5 0

Answer:

First one: 5x3(0.75)2t

and fourth one: 0.05x500(0.005)t

Step-by-step explanation:

In order to have an exponencial decay, the rate of the exponencial function needs to be lesser than 1.

The rate is the value between parenthesis, so in the first equation, the rate is 0.75, so this is an exponencial decay.

The second equation has rate = 2.4, so this is not an exponencial decay.

The third equation has rate = 1.04, so this is not an exponencial decay.

The fourth equation has rate = 0.005, so this is an exponencial decay.

kykrilka [37]3 years ago
5 0

Answer:

It's A,C,F

Step-by-step explanation:

I answered it :) and got it right.

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Part I: Marco rented a small moving van. The moving company charges $40 a day for up to 5 days. The input is the time, in days,
Snezhnost [94]

Given mapping is a function.

Domain: \{1,2,3,4,5\}

Range: \{40,80,120,160,200\}

Step-by-step explanation:

By observing Marco's mapping diagram we can see that every value in time is mapped to only one value in the cost. This means that there will be no repetition or same output to two different outputs so given mapping is a function.

<u>Domain:</u>

Domain is the set of all inputs of a function. Here time is input so domain of function is:

\{1,2,3,4,5\}

<u>Range:</u>

Range is the set of all outputs of the function on domain so the range of the given function is:

\{40,80,120,160,200\}

Hence,

Given mapping is a function.

Domain: \{1,2,3,4,5\}

Range: \{40,80,120,160,200\}

Keywords: Domain, range, function

Learn more about function at:

  • brainly.com/question/774670
  • brainly.com/question/763150

#LearnwithBrainly

7 0
3 years ago
While exercising, a person’s recommended target heart rate is a function of age. The recommended number of beats per minute, y ,
Deffense [45]

Answer:

170 heart beat per minute.

Step-by-step explanation:

While exercising, a person’s recommended target heart rate is a function of age. The recommended number of beats per minute, y, is given by the function y = f(x) = − 0.85x + 187 where x represents a person’s age in years.

So, if my age is 21 years i.e. x = 21, then the number of recommended heart beats per minute for my age will be

y = f(21) = - 0.85(21) + 187 = - 17.85 + 187 = 169.15 ≈ 170. (Answer)

{Taking the larger integer value}

8 0
4 years ago
∠QPS is a right angle and m∠QPR = 71°, what is m∠RPS?
natta225 [31]

Answer: <RPS = 161

Step-by-step explanation:

P is the common vertex in all of these angles. From this we know that these have to be adjacent angles (<QPR and <QPS) that equal the whole angle (<RPS)

<QPR+<QPS= <RPS

71+90= 161

(<QPS is a right angle. Right angles are equal to 90 degrees.)

8 0
3 years ago
9x-23=49 what is the second step in this equation?
ladessa [460]

Answer:

Divide both sides by 9.

Step-by-step explanation:

To find the second step of the equation, we actually have to solve parts of the equation until we get to step 2.

Step 1: Add 23 to both sides.

  • 9x - 23 + 23 = 49 + 23
  • 9x = 72

Step 2: Divide both sides by 9.

  • \frac{9x}{9} = \frac{72}{9}
  • x = 8

Therefore, the second step is divide both sides by 9.

Have a lovely rest of your day/night, and good luck with your assignments! ♡

5 0
2 years ago
Factor completely. n 2 + 7n - 44 (n - 4)(n - 11) (n - 4)(n + 11) (n + 4)(n - 11)
enot [183]
The answer is (n+11)(n-4). You want to find what multiplies to make -44 and what adds to make 7.
4 0
3 years ago
Read 2 more answers
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