All categories

3 years ago

I need help on this question

Mathematics

1 answer:

Troyanec [42]3 years ago

5 0

Hello!

In a taxi cab, the longer you ride, the more it costs. This would make a scatter plot go through Quadrant 1.

Therefore, it would have a positive relationship

I hope this helps!

You might be interested in

The sum of two numbers must be 14 or greater. The product of the two numbers must be less than 40. Which system of inequalities

Anettt [7]

Answer:

Step-by-step explanation:

x+y≥14

xy<40

4 0

3 years ago

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

Day 6: Textbook Page 321 Problem 9 When Esteban looks at the puddle, he sees a reflection of the top of the cactus. How tall is

Novay_Z [31]

The given figure can be drawn as,

From the figure,

$\tan \theta=\frac{opposite\text{ side}}{\text{adjacent side}}$

$\begin{gathered} \tan \theta=\frac{DE}{EC} \\ \tan \theta=\frac{1.5}{2.5} \\ \tan \theta=0.6 \end{gathered}$

Since angle of incidence will be equal to angle of reflection, $\begin{gathered} \text{tan}$ Therefore, the height of cactus is 6 m.

6 0

8 months ago

Dailene has 30 CD's and buys two new ones each week. Renae has 18 CD's and buys 4 new ones each week. after now many weeks will

Naddika [18.5K]

6 Weeks is the awnser

3 0

2 years ago

PLease help me please

valkas [14]

Xy+24=x22 that is the answer hope it helps

7 0

3 years ago