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3 years ago

USA test prep please answer

Mathematics

2 answers:

aleksandr82 [10.1K]3 years ago

8 0

I think it’s c sorry if it’s wrong

enyata [817]3 years ago

5 0

Answer:

the answer is B

Step-by-step explanation:

12 or greater than is going right so B is correct when the line is going left its going to be less than

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Josh rented a truck for one day. There was a base fee of$14.99,and there was an additional charge of81cent for each mile driven.

BigorU [14]

$117.05
- $ 14.99
-------------
$102.46 left

Divide 102.46 by 0.81, and you get 126, which makes it 126 miles.

Hope this helps!

7 0

4 years ago

Read 2 more answers

5. Find the general solution to y'''-y''+4y'-4y = 0

CaHeK987 [17]

For any equation,

$a_ny^(n)+\dots+a_1y'+a_0y=0$

assume solution of a form, $e^{yt}$

Which leads to,

$(e^{yt})'''-(e^{yt})''+4(e^{yt})'-4e^{yt}=0$

Simplify to,

$e^{yt}(y^3-y^2+4y-4)=0$

Then find solutions,

$\underline{y_1=1}, \underline{y_2=2i}, \underline{y_3=-2i}$

For non repeated real root y, we have a form of,

$y_1=c_1e^t$

Following up,

For two non repeated complex roots $y_2\neq y_3$ where,

$y_2=a+bi$

and,

$y_3=a-bi$

the general solution has a form of,

$y=e^{at}(c_2\cos(bt)+c_3\sin(bt))$

Or in this case,

$y=e^0(c_2\cos(2t)+c_3\sin(2t))$

Now we just refine and get,

$\boxed{y=c_1e^t+c_2\cos(2t)+c_3\sin(2t)}$

Hope this helps.

r3t40

5 0

3 years ago

Find the length of AB

ZanzabumX [31]

AB= 45 degrees central angle theorem

8 0

3 years ago

Please some one help me.

vagabundo [1.1K]

Answer:

-11

Step-by-step explanation:

You need to take the absolute value of 12-15 which would be 3. Then take -8-3 which would be -11

3 0

3 years ago

Determine the domain and range of the following

Tasya [4]

Answer:

Domain: (-3,-2,0,1,2,3)

Range: (9,4,1,0,1,4,9)

Step-by-step explanation:

5 0

3 years ago