2 years ago

HELPPPPPP!!!! PLZZZ!!! (all three answers) ill give brain thing

Mathematics

1 answer:

antiseptic1488 [7]2 years ago

7 0

The car could travel 9,000 ft in 3 hrs .
it would take the car 600 hrs to travel 36,000 ft .

You might be interested in

Find the integration of (1-cos2x)/(1+cos2x)

slega [8]

Given:

The expression is:

$\dfrac{1-\cos 2x}{1+\cos 2x}$

To find:

The integration of the given expression.

Solution:

We need to find the integration of $\dfrac{1-\cos 2x}{1+\cos 2x}$ .

Let us consider,

$I=\int \dfrac{1-\cos 2x}{1+\cos 2x}dx$

$I=\int \dfrac{2\sin^2x}{2\cos^2x}dx$ $[\because 1+\cos 2x=2\cos^2x,1-\cos 2x=2\sin^2x]$

$I=\int \dfrac{\sin^2x}{\cos^2x}dx$

$I=\int \tan^2xdx$ $\left[\because \tan \theta =\dfrac{\sin \theta}{\cos \theta}\right]$

It can be written as:

$I=\int (\sec^2x-1)dx$ $[\because 1+\tan^2 \theta =\sec^2 \theta]$

$I=\int \sec^2xdx-\int 1dx$

$I=\tan x-x+C$

Therefore, the integration of $\dfrac{1-\cos 2x}{1+\cos 2x}$ is $I=\tan x-x+C$ .

8 0

2 years ago

Which expression can be used to model the phrase "the sum of three and a number"?

NeX [460]

The sum of three and a number is 3+x

3 0

3 years ago

Given the equation y = 2/3 x − 2, what is the value of x when y = 10?

SIZIF [17.4K]

Step-by-step explanation:

Y is equal to:

2/3x - 2 = 10

2/3x = 10 + 2

2/3x = 12

3/3x = (12 ÷ 2) × 3

x = 18

Not sure but its worth a try.

6 0

3 years ago

Please help!!!!! <br><br><br> Split using partial fraction decomposition

Rama09 [41]

Answer:

Step-by-step explanation:

6 0

2 years ago

What does the "O" stand for in the S.T.O.P. method of refusal?

natima [27]

B.offer another idea hope i helped :)

3 0

2 years ago