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3 years ago

1-tan20×tan25=tan20+tan25

Mathematics

1 answer:

stiv31 [10]3 years ago

5 0

Answer:I DON'T KNOW

Step-by-step explanation:

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The population of a city grows exponentially at rate of 8% per year.Find the number of years it takes for the population to be d

Ilya [14]

Answer:

<em>It will take 9 years for the population to double</em>

Step-by-step explanation:

<u>Exponential Growth </u>

The natural growth of some magnitudes can be modeled by the equation:

$P=P_o(1+r)^t$

Where P is the actual amount of the magnitude, Po is its initial amount, r is the growth rate and t is the time.

The population of a city grows at a rate of r=8% = 0.08 per year. We are required to find when (t) the population will double, or P=2Po.

Substituting in the equation:

$2P_o=P_o(1+0.08)^t$

Simplifying:

$2=(1.08)^t$

Taking logarithms:

$\log 2=\log (1.08)^t$

Applying the exponent property of logs:

$\log 2=t\log (1.08)$

Solving for t:

$\displaystyle t=\frac{\log 2}{\log (1.08)}$

Calculating:

$t\approx 9$

It will take 9 years for the population to double

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3 years ago

Tyrone has 8.06 how many bagels can he buy if each bagel costs 0.65

Aleonysh [2.5K]

8.06 divided by 0.65

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3 years ago

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If the area of a square is 36 inches what is the length of one side?

Pavel [41]

To find the length of a square given the area, we just need to take the square root of the area given. The sqrt of 36 is 6, so each side is 6 inches. :)

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3 years ago

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The heat in the house is set to keep the minimum and maximum temperatures (in degrees Fahrenheit) according to the equation |x –

olga2289 [7]

Given the equation $|x-72.5|=4$ .

When x is maximum, we have

$|x-72.5|= x-72.5$ . Hence $x-72.5 =4\\x=76.5$

The maximum temperature is $76.5\; ^oF$

When x is minimum, we have

$|x-72.5|=72.5-x$ . Hence $72.5-x =4\\x=68.5$

The minimum temperature is $68.5\; ^oF$

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3 years ago

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Find the value of x and y

Virty [35]

Answer:

x=14

y=12

Step-by-step explanation:

so you add 3 plus 9 and 2 plus 4 with 8 and you should get x- 14 and y= 12

Hope this helps

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4 years ago

1-tan20×tan25=tan20+tan25​

1-tan20×tan25=tan20+tan25