All categories

3 years ago

The price of an 18-minute phone call is 1.60$. What is the price of an 18-minute phone call?

Mathematics

1 answer:

Finger [1]3 years ago

7 0

$1.60 for an 18 minute phone call. That would be $0.20 a minute.

You might be interested in

How do you integrate arctan(x dx? i think that if you simplify the integral you get:?

Temka [501]

Integration by parts will help here. Letting $u=\arctan x$ and $\mathrm dv=\mathrm dx$ , you end up with $\mathrm du=\dfrac{\mathrm dx}{1+x^2}$ and $v=x$ . Now

$\displaystyle\int\arctan x\,\mathrm dx=uv-\int v\,\mathrm du$
$\displaystyle\int\arctan x\,\mathrm dx=x\arctan x-\int\frac x{1+x^2}\,\mathrm dx$

For the remaining integral, setting $y=1+x^2$ gives $\dfrac{\mathrm dy}2=x\,\mathrm dx$ , so

$\displaystyle\int\frac x{1+x^2}\,\mathrm dx=\frac12\int\frac{\mathrm dy}y=\frac12\ln|y|+C=\frac12\ln(1+x^2)+C$

Putting everything together, you end up with

$\displaystyle\int\arctan x\,\mathrm dx=x\arctan x-\frac12\ln(1+x^2)+C$

6 0

3 years ago

What is 3.242424... as a mixed number

Lesechka [4]

The answer to the question is 3 8/33

7 0

3 years ago

Linda Rove is paid $6.39 for each table she assembles. Last week she assembled the following number of tables. What was Roves pa

aleksandr82 [10.1K]

U dont really know what the answer is

7 0

4 years ago

*<br> Simplify the expression:<br> (-6p+7). -4

Art [367]

Answer:

I'm assuming you need to distribute. When simplified the expression is 42p-28

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Jenny thinks that the expression below is equal to x²-4. If you agree, show that she is correct. If you disagree, show that she

sergiy2304 [10]

Answer:

Jenny is wrong the correct answer is x²+ 4 - 4 x.

Step-by-step explanation:

Given that

(x-2)³∕x-2

(x-2)³∕(x-2) =(x-2) (x-2)²∕(x-2)

(x-2)³∕(x-2) = (x-2)²

As we know that

(a-b)² = a²+b² - 2 ab

(x-2)² = x²+ 2² - 2 ˣ 2 ˣ x = x²+ 4 - 4 x

(x-2)² = x²+ 4 - 4 x

It means that

(x-2)³∕(x-2) = (x-2)² = x²+ 4 - 4 x

So Jenny is wrong the correct answer is x²+ 4 - 4 x.

8 0

3 years ago

The price of an 18​-minute phone call is 1.60​$. What is the price of an 18​-minute phone​ call?

The price of an 18-minute phone call is 1.60$. What is the price of an 18-minute phone call?