1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
MAVERICK [17]
2 years ago
10

The line CD passes through the points C (2, -1) and D (1.1). Which of the

Mathematics
1 answer:
elena-14-01-66 [18.8K]2 years ago
6 0

Answer:

what

Step-by-step explanation:

You might be interested in
Special right traingles (30, 60, 90<br> 45, 45, 90
igor_vitrenko [27]

Answer:

30

Step-by-step explanation:

3 0
3 years ago
Find all points having an x-coordinate of 2 whose distance from the point (-1,-2) is 5
mariarad [96]
The\ equation\ of\ the\ circle:(x-a)^2+(y-b)^2=r^2\\\\where\ (a;\ b)\ -the\ coordinates\ of\ the\ center;\ r-the\ radius\\-----------------------------\\(-1;-2)-the\ center\ of\ the\ circle\\r=5\\\\The\ equation:(x+1)^2+(y+2)^2=5^5\\\\Put\ x=2\ to\ the\ equation:\\\\(2+1)^2+(y+2)^2=25\\3^2+(y+2)^2=25\\9+(y+2)^2=25\\(y+2)^2=25-9\\(y+2)^2=16\iff y+1=\pm\sqrt{16}\\\\y+1=-4\ or\ y+1=4\ \ \ \ \ |subtract\ 1\ from\ both \sides\\y=-5\ or\ y=3\\\\Answer:(2;-5)\ and\ (2;\ 3).
5 0
3 years ago
Without graphing, determine the period of the function y=3.7sin(15x)- 0.1
Iteru [2.4K]
Answer is D 15 good luck
3 0
3 years ago
Find a particular solution to the nonhomogeneous differential equation y'' + 4 y = cos(2x) + sin(2x).
alukav5142 [94]
The characteristic solution follows from solving the characteristic equation,

r^2+4=0\implies r=\pm2i

so that

y_c=C_1\cos2x+C_2\sin2x

A guess for the particular solution may be a\cos2x+b\sin2x, but this is already contained within the characteristic solution. We require a set of linearly independent solutions, so we can look to

y_p=ax\cos2x+bx\sin2x

which has second derivative

{y_p}''=(-4ax+4b)\cos2x+(-4bx-4a)\sin2x

Substituting into the ODE, you have

y''+4y=\cos2x+\sin2x
\implies4b\cos2x-4a\sin2x=\cos2x+\sin2x
\implies\begin{cases}4b=1\\-4a=1\end{cases}\implies a=-\dfrac14,b=\dfrac14

Therefore the particular solution is

y_p=-\dfrac14x\cos2x+\dfrac14x\sin2x

Note that you could have made a more precise guess of

y_p=(a_1x+a_0)\cos2x+(b_1x+b_0)\sin2x

but, of course, any solution of the form a_0\cos2x+b_0\sin2x is already accounted for within y_c.
6 0
3 years ago
Given the function f(x) = x2 and k = -3, which of the following represents a vertical shift? (2 points)
lubasha [3.4K]
Answer:
f(x) + k

Explanation:
Vertical shift is represented by adding/subtracting a constant from the original given equation.
If the constant added is +ve, this means that the curve is vertically shifted upwards
If the constant added is -ve, this means that the curve is vertically shifted downwards.

Now, for the given, we have the original function f(x) and the constant k, therefore, to shift the graph vertically, the new function would be f(x)+k
We have:
f(x) = x² and k = -3
This means that the new function would be:
x² - 3
Since the constant is -ve, we can conclude that the curve is shifted vertically downwards by 3 units

Hope this helps :)
8 0
3 years ago
Other questions:
  • Mia has 12 marbles, alex has 9 marbles, and micheal has 51 marbles. use the gcf and the distributive property to find the total
    15·1 answer
  • Matty jogs 1 km in 5 minutes. Compute Matty's speed in m/s.
    6·1 answer
  • Mike's family wants to build a rectangular fenced backyard area for their dog. They have a 20-meter length of wire fence and fou
    7·1 answer
  • A farmer needs 5 men to clear his farm in 10days.How many men will he need to clear the bush in 2 days.
    11·1 answer
  • Ryan, Jessica, and Mark each solved this system of equations. All of their answers are different. Find and explain the mistakes.
    14·2 answers
  • A line parallel to a line that has a slope of 0 would have the slope of? geometry/algebra
    14·1 answer
  • Plz help please<br><br> Is the relation shown in the arrow diagram a function?
    5·2 answers
  • Can you guys help me find the slope for the given graph and y-intercept <br> (pictures included)
    13·1 answer
  • The boys’ soccer team is having a celebration at the end of the season. There are 8 boys on the team and they have ordered 11 pi
    9·2 answers
  • Mary drove from her home to the library after she left the library she drove to the park after that she drove home the map shows
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!