Ask question

Ask question

All categories

2 years ago

9

Please help you will get 15 points.

1 answer:

Sedbober [7]2 years ago

7 0

Answer:

6° and acute angle

you watch the clock or find a clock, in right angle there 90° or 3 o'clock, if you want to understand it, try to count the the minute from 12 to 3 in the clock, if you count it then you see the are there is 15 minutes, then the 90° divide the number of minute which is 15, the answer is 6°. and then the answer of the next question is acute angle it is because the hour hand of the clock travels in 1 minute, it means every 1minute there are 6°, and 6° is less than 90° that why it's acute angle.

You might be interested in

How do you graph this on graph paper using these coordinates? The graph is in shape of a cross. (9,4) (6,-12) (9,-12) (10,-8) (1

TiliK225 [7]

Remember:
(x, y)
(y-axis)
|
|
--------|-------- (x-axis)
|
|

You just have to...
fiddle...
around with the graph.
And try to figure out things.

I spent 20 minutes on this.
and couldn't get quite close to a cross.
sorry.

4 0

3 years ago

Consider the differential equation x^2 y''-xy'-3y=0. If y1=x3 is one solution use redution of order formula to find a second lin

Anastasy [175]

Suppose $y_2(x)=y_1(x)v(x)$ is another solution. Then

$\begin{cases}y_2=vx^3\\{y_2}'=v'x^3+3vx^2//{y_2}''=v''x^3+6v'x^2+6vx\end{cases}$

Substituting these derivatives into the ODE gives

$x^2(v''x^3+6v'x^2+6vx)-x(v'x^3+3vx^2)-3vx^3=0$

$x^5v''+5x^4v'=0$

Let $u(x)=v'(x)$ , so that

$\begin{cases}u=v'\\u'=v''\end{cases}$

Then the ODE becomes

$x^5u'+5x^4u=0$

and we can condense the left hand side as a derivative of a product,

$\dfrac{\mathrm d}{\mathrm dx}[x^5u]=0$

Integrate both sides with respect to $x$ :

$\displaystyle\int\frac{\mathrm d}{\mathrm dx}[x^5u]\,\mathrm dx=C$

$x^5u=C\implies u=Cx^{-5}$

Solve for $v$ :

$v'=Cx^{-5}\implies v=-\dfrac{C_1}4x^{-4}+C_2$

Solve for $y_2$ :

$\dfrac{y_2}{x^3}=-\dfrac{C_1}4x^{-4}+C_2\implies y_2=C_2x^3-\dfrac{C_1}{4x}$

So another linearly independent solution is $y_2=\dfrac1x$ .

3 0

2 years ago

HELP! I'll give brainliest. I'm trying to help my brother and he is failing so please help me. Just..Please?!!!!!!

vovangra [49]

Answer:

35.77709

Step-by-step explanation:

5 0

2 years ago

Read 2 more answers

Write an expression for y more than 2

monitta

Answer:

2 + y

Step-by-step explanation:

all you must do is add y to 2

3 0

2 years ago

(Will give Brainliest, these are angle relationships) Please help, and show work, what relationship is it and set up an equation

kozerog [31]

Supplementary angles
x+20+5x+10=180
6x+30=180
6x=150
x=25

7 0

2 years ago

Read 2 more answers