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3 years ago

Need help on all of them lol even if u can do one or a few, can someone plz help? #3-14

Mathematics

1 answer:

valina [46]3 years ago

8 0

Just times them and you will have the volume

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Write the following number by entering one digit in each box of the place value chart.

ratelena [41]

Answer:

see the attached

Step-by-step explanation:

Each digit goes in the place corresponding to its place value.

When no digit has a given place value, a placeholder is used. That is the purpose of zero, a great invention in the history of mathematics. It makes place-value number systems possible.

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3 years ago

Exponential growth/decay problem 2

lapo4ka [179]

Answer:

a) decay

b) 2,950,000

c) 0.025

d) $f(x)=2950000(0.975)^x$

e) 2,409,123

Step-by-step explanation:

Part (a)

Exponential DECAY, since the population was decreasing annually.

Part (b)

Initial amount = 2,950,000 people (in the year 2000)

Part (c)

Decay factor = 2.5% = 0.025 (in decimal form)

Part (d)

General form of exponential decay function:

$f(x)=a(1-r)^x$

where:

a = initial amount
r = rate of decay (in decimal form)
x = time (in years)

Given:

a = 2950000
r = 0.025

$\implies f(x)=2950000(1-0.025)^x$

$\implies f(x)=2950000(0.975)^x$

Part (e)

To determine the city's population in 2008:

$x = 2008 - 2000 = 8$

$\begin{aligned}\implies f(8) & =2950000(0.975)^8\\ & = 2409123\: \sf(nearest\:whole\:number)\end{aligned}$

7 0

2 years ago

Is the square root of 25 a rational number? Explain how you know

adelina 88 [10]

yes because 25 divided by 5 equals 5

4 0

3 years ago

Read 2 more answers

4d + 3 - d + c Simplified Answer-Type Answer Here,

rosijanka [135]

4d + 3 - d + c

Sum together everything that has the same letters:

4d - d = 3d

Put this answer into the question:

3d + 3 + c

That’s your answer as there is no further working we can do! :)

6 0

3 years ago

7.281 round to the nearest hundredth

dlinn [17]

The answer is 7.28. :D

8 0

3 years ago