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Anarel [89]
3 years ago
11

Can anybody explain this to me and answer please

Mathematics
1 answer:
Nataly_w [17]3 years ago
8 0
Yes I can help you with that word problem j have there so you can get a good score love
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Country A has a growth rate of 3.4​% per year. The population is currently 4,118​,000, and the land area of Country A is 29​,000
Eduardwww [97]

Answer:

time period is 260.57 years

Step-by-step explanation:

given data

growth rate = 3.4 % = 0.034

population = 4118000

area  P = 29000000000 square yard

to find out

time period that one person for every square yard of​ land need

solution

we will apply here population growth formula that is

total population P  = initial population × e^{rt}    ..............1

here r is rate of growth and t is time period and

we consider here initial population is current population

so put value in equation 1 to get t

29000000000 = 4118000 × e^{0.034t}

take ln both side

ln 7042.25 = ln e^{0.034t}

8.8596 = 0.034 t

t = 260.57

so time period is 260.57 years

7 0
3 years ago
Two numbers have the ratio of 4:7 if their sum is 143 what are the numbers?
garri49 [273]

Answer:

52:91

Step-by-step explanation:

To find a ratio value you need to think of it more as two numerators that together equal one whole. 4+7 is 11 so that would be the denominator. If the sum is 143, then we divide by 11 since one number is 4/11s of 143, and the other is 7/11s of 143. 143/11=13

now we multiply both:

4(13)=52

7(13)=91

Check:

91+52=143

52/91 simplifies to 4/7 or 4:7

i hope this helps!

3 0
3 years ago
CAN SOMEONE PLEASE HELP ME!!!!
ivanzaharov [21]
Option 4. x>2 should be an open circle on 2 going right. x<=-2 should be a closed circle on -2 going left. Remember, < equals open circle and <= equals closed circle.
4 0
3 years ago
Help me with this plsss
slavikrds [6]

Answer:

56.31 is r

Hope it helps!!!

6 0
3 years ago
Plss help for brainlist
luda_lava [24]

Answer:

{2, 4, 6}

Step-by-step explanation:

the domain is the interval or set of valid x (input) values.

the range is the interval or set of valid y (result) values.

just use the x values in the functional definition and collect the results. these are the range.

x = -1

y = 2×-1 + 4 = 2

x = 0

y = 2×0 + 4 = 4

x = 1

y = 2×1 + 4 = 6

3 0
3 years ago
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