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boyakko [2]
2 years ago
5

Find f(g(2)) if f(x) = 2x-1 g(x) = -3x Find f(g(2)) if f(x) = 2x-1 g(x) = -3x -6 -9 3 -13Let Q (in grams) represent the mass of

a quantity of carbon-14, which has a half-life of 5730 years. The quantity present after t years is Q(t)=10\cdot\left(\frac12\right)^{\left(\frac t{5730}\right)}Q(t)=10⋅(
2
1
​
)
(
5730
t
​
)
.

Determine the quantity present after 2000 years.


Let Q (in grams) represent the mass of a quantity of carbon-14, which has a half-life of 5730 years. The quantity present after t years is Q(t)=10\cdot\left(\frac12\right)^{\left(\frac t{5730}\right)}Q(t)=10⋅(
2
1
​
)
(
5730
t
​
)
.

Determine the quantity present after 2000 years.


7.851 grams

1.117 grams

0.785 grams

1.745 grams
Mathematics
1 answer:
RSB [31]2 years ago
7 0

The quantity that is present after 2000 years will be A. 7.851 grams.

<h3>How to calculate the quantity?</h3>

From the information given, initially at t = 0, the quantity is 10 grams.

After 2000 years, the appropriate quantity will be:

Q(2000) = 10 (1/2) × (2000/5730)

Q(2000) = 7.851 grams.

In conclusion, the correct option is A.

Learn more about quantity on:

brainly.com/question/13799721

#SPJ1

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Choose the option that best completes the sentence.
kirza4 [7]

The amount of time it takes to finish a race might be a function of: A. the length of the race.

<h3>How to find the relationship between distance and time?</h3>

We know that formula for distance is;

Distance = Speed * time

Now, we can see clearly that distance covered is directly proportional to the time taken. Thus, the longer the distance, the more the time taken to finish the race.

Thus, we can conclude that the amount of time it takes to finish a race might be a function of:

A. the length of the race.

Read more about Distance-time relationship at; brainly.com/question/14463409

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4 0
2 years ago
Identify the slope and the y-intercept y=1/4x - 3/4<br><br> Slope = <br> y-intercept =
GarryVolchara [31]
Slop=(1/4,0) or 1/4x
y-intercept =(0,-3/4)
i hope it will help you!
7 0
3 years ago
When a fish is selected at random from a tank, the probability that it has a green tail is 0.36, the probability that it has red
Katarina [22]

Answer: 0.26

Step-by-step explanation:

As per given , we have

P(green tail) = 0.36

P(red fins) = 0.59

P(both a green tail and red fins ) = 0.21

Now, P(Neither red fin nor green tail )= 1 - P(either red fin or green tail )

<em>[P(neither A nor B)= 1- P(either A or B)]</em>

= 1-(P(green tail) +P(red fins)+P(both a green tail and red fins ))

<em>[P(A or B)= P(A)+P(B)-P(A and B)]</em>

= 1- (0.36+0.59-0.21)

= 1-(0.74)

= 0.26

Hence, the probability that the selected fish will not have a red fin or a green tail = 0.26

6 0
3 years ago
The price of gas, which started at $2.25 per gallon, increased at a rate of 4% per year. Write the function that models the situ
Rina8888 [55]

<u>Answer:</u>

f ( x ) = 2 . 2 5 ( 1 + 0 . 4 ) ^ x

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

We are given that the price of gas started at $2.25 and increased at a rate of 4% per year.

We are to write a function which models this situation using numerical values of A and r into the expression.

A = $2.25

r = 4%

Assuming x to be the time in years, the function would be:

f ( x ) = 2 . 2 5 ( 1 + 0 . 4 ) ^ x

<u></u>

6 0
3 years ago
Read 2 more answers
The length and breadth of a rectangles are in the ratio 8:5. If its perimeter is 104cm, find the length of the rectangle​
valkas [14]

20.8 cm

so sorry if incorrect :(

7 0
3 years ago
Read 2 more answers
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