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2 years ago

teds class colects aluminum cans to cell to the recycle center. the center pays $0.002 for each kilogram of aluminum

Mathematics

1 answer:

zhannawk [14.2K]2 years ago

3 0

I believe the answer you are looking for is:

t = 0.002n

You might be interested in

Compare values of 5 in 552,299

Artyom0805 [142]

Compare Values of 5's:

552, 299 ======> 5, 52,, 299

5 ===> Millions Place

5 ===> Hundred-Thousands

2 ===> Ten-Thousands Place

2 =====> Thousands Place

9 ===> Hundreds Place

9 ===> Tens Place

Hope that helps!!! : )

5 0

3 years ago

Is this right? please helpppp

erastova [34]

Si, estoy seguro de que tienes razón

6 0

2 years ago

the Earth has an average distance from the Sun of 1.5* 10 to the 8th power kilometers and the Earth has an approximate distance

Aleks04 [339]

Answer:

Earth's average distance from the Sun is $375$ times more than is from the Moon.

Step-by-step explanation:

Given the average distance of Earth from the Sun is $1.5\times10^{8}$ kilometers.

Also, the approximate distance of Earth from the Moon is $4\times10^{5}$ kilometers.

For this, we will divide the average distance of Earth from the Sun by approximate distance of Earth from the Moon.

So,

$\frac{1.5\times10^{8}}{4\times10^{5}}=375\ km$

4 0

3 years ago

Beatrice has received two job offers, one in city A and one in city B. She would like to estimate the difference in average home

zimovet [89]

Answer:

Step-by-step explanation:

The confidence interval gives a range of values that could contain the population mean.

Confidence interval is written as

Sample mean ± margin of error

Confidence interval does not express probability.

Given that the sample mean home price for city A is $189500 and the sample mean home price for city B is $185000, the difference in the sample mean home prices for both cities is

189500 - 185000 = $4500

Since the margin of error for 95% confidence interval for the difference in average home price between the two cities (A-B) to be $3400, then

The upper limit of the confidence interval is

4500 + 3400 = $7900

The lower limit of the confidence interval is

4500 - 3400 = $1100

Therefore, the correct conclusion is

Beatrice can be 95% confident that the average home price is between $1100 and $7900 more in city A than in city B.

8 0

3 years ago

Prove the formula for (d/dx)(cos−1(x)) by the same method as for (d/dx)(sin−1(x)). Let y = cos−1(x). Then cos(y) = and 0 ≤ y ≤ π

alexandr402 [8]

Answer:

$\frac{d\,arccos(x)}{dx} =-\frac{1}{\sqrt{1-x^2} }$

See the proof below

Step-by-step explanation:

if $y=arccos(x)$ , then : $cos(y)=cos(arccos(x))=x$

We can then apply the derivative to both sides of this last equation and remember to use the chain rule as we encounter the variable "y":

$cos(y)=x\\\frac{d}{dx} cos(y)=\frac{d}{dx} x\\-sin(y)\,\frac{dy}{dx} =1\\\frac{dy}{dx} =-\frac{1}{sin(y)} \\\frac{dy}{dx} =-\frac{1}{\sqrt{1-cos^2(y)} }\\\frac{dy}{dx} =-\frac{1}{\sqrt{1-x^2} }\\\frac{d\,arccos(x)}{dx} =-\frac{1}{\sqrt{1-x^2} }$

7 0

2 years ago