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3 years ago

Which must be true I NEED HELP

Mathematics

1 answer:

tatyana61 [14]3 years ago

6 0

Answer:

I beileve it's C.

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The population of an Asian country is growing at the rate of 0.7% annually. If there were 3,942.000 residents in the city in 199

Anettt [7]

Answer:

b) 4,000,000

Step-by-step explanation:

Let the population is measured since 1995,

Given,

The initial population, P = 3,942,000,

Annual rate of growing, r = 0.7% = 0.007,

If y represents the population after t years

So, the population after t years would be,

$y=Pe^{rt}$

$y=3942000(2.7)^{0.007x}$

Therefore, the population after 5 years,

$y=3942000(2.7)^{0.007\times 5}=3942000(2.7)^{0.035}=4081448.78924\approx 4000000$

Hence, the population in 2000 would be approximately 40,00,000.

Option 'b' is correct.

4 0

3 years ago

3 times a certain number n is added to 6, the sum is 20 more than the original

Vikentia [17]

Answer:

n = 5.33→

Step-by-step explanation:

4 0

3 years ago

Roy uses 1/4 cup of batter for each muffin. make a list of batter he will use depending on the number of muffins he makes.

evablogger [386]

1 muffin = 1/4 cup
2 muffins = 1/2 cup
3 muffins = 3/4 cup
4 muffins = 1 cup
5 muffins = 1 and 1/4 cup
6 muffins = 1 and 1/2 cup

5 0

3 years ago

Read 2 more answers

Josh is solving the equation 2 % + 2% and predicts that his

gregori [183]

4 5/6 Hope this helps.

You have to find the common denominator for 1/3 & 4/8. & it’s 24. By doing that you have to multiply 3x8, when you do that you also have to multiply 1x 8 so you get 8/24 , same with 4/8 but with three so you get 12/24. Then add your answer 20/24, which equals out to 20/24 which reduces to 5/6. Add 5/6 to 2+2 and you’re left with 4 5/6. Hope this helps.

4 0

3 years ago

Need help with this asap!

Brums [2.3K]

Answer:

The answer to your question is b = 8.06 cm

Step-by-step explanation:

Data

hypotenuse = c = 9 cm

long leg = b = ?

short leg = a = 4 cm

Process

This is a right triangle so we must use the Pythagorean theorem to find the length of the long leg (b)

c² = a² + b²

-Solve for b²

b² = c² - a²

-Substitution

b² = 9² - 4²

-Simplification

b² = 81 - 16

b² = 65

-Result

b = 8.06 cm

4 0

3 years ago

Read 2 more answers