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
stiv31 [10]
3 years ago
9

Horatio drew a circle with a radius of 6x cm. Kelli drew a circle with a radius of 18y cm. What is the scale factor between thes

e two circles? (this is a quiz question, you will recieve a medal for best answer)
A. x/3y
B. 2x/3y
C. 1/3
D. 2/3
Mathematics
2 answers:
jasenka [17]3 years ago
5 0
I believe the answer Is A.x/3y.
crimeas [40]3 years ago
5 0
The scale factor of these two circles is the ratio of their radii. This is shown below,
                               sf = r1 / r2   =   6x/18y
Simplifying the fraction by dividing both the numerator and the denominator by 6 gives an answer of x/3y. Thus, the answer is letter A. 
You might be interested in
Here are the scores that a group of teenagers earned on a driver’s education test.
svet-max [94.6K]
176 and 180 all the other numbers are good
3 0
2 years ago
Determine the area of the triangle.
coldgirl [10]

Answer:

396.8

Step-by-step explanation:

Multiply them to each other.

3 0
3 years ago
Read 2 more answers
Please is urgent please
Tcecarenko [31]

Answer: Assuming the plumber will round up the hours, the answer is 335.

Step-by-step explanation:

You can use this equasion to solve the problem: 75+52x=c

In this case, x would equal the number of hours he would work and c would represent the final cost.

Basically, you can just multiply the hourly cost by the hours he works and then add the service fee. Hope this helped!

3 0
3 years ago
A spring with a spring constant k of 100 pounds per foot is loaded with 1-pound weight and brought to equilibrium. It is then st
shutvik [7]

Answer:

Equation of movement y(t)

y(t)=sin(10t-\pi/2)

Amplitude: 1 inch

Period: 0.628 seconds

Step-by-step explanation:

If there is no friction, the amplitude will be the length it was streched from the equilibrium. In this case, this value is 1 inch

A=1\,inch

The period depends on the mass and the spring constant.

The formula for the period is:

T=\frac{1}{f} =\frac{2/pi}{\omega} =2\pi\sqrt{\frac{m}{k}}=2\pi\sqrt{\frac{1}{100}}=2\pi*0.1=0.628\, s

The model y(t) for the movement of the mass-spring system is

y(t)=A\cdot sin(\omega t +\phi)\\\\A=1\\\\\omega=\sqrt{k/m} =\sqrt{100/1}=10\\\\y(0)=Asin(\phi)=-A\\\\ \phi=arcsin(-1)=-1.571=-\pi/2\\\\\\y(t)=sin(10t-\pi/2)

8 0
3 years ago
A birthday party host planned for 20 people, but 17 actually attended. What is the percent error?​
Nikolay [14]

Answer: 29% i believe is the answer

8 0
3 years ago
Read 2 more answers
Other questions:
  • The length of a rectangle is 4 centimeters less than twice it’s width. The perimeter of the rectangle is 34vm. What are the dime
    11·2 answers
  • What type of figures are shown?Which scale factor changes the small to the large version
    5·1 answer
  • Help asap time limit ​
    6·1 answer
  • Write the domain and range as inequalities.
    8·1 answer
  • Dexter read 11 science fiction books and 5 history books. Lena read 9 science fiction books and 4 history books. Compare the stu
    8·1 answer
  • 7. Construct a pie chart to depict the data given below:
    14·1 answer
  • Find the common difference of the arithmetic sequence -2,6,14,...
    7·1 answer
  • Y=1/2(x+8)+3 please show work also write in y=mx+b
    9·1 answer
  • Use the drop-down menus and the image to complete these statements about prokaryotes. prokaryotes a nucleus surrounding their ch
    6·1 answer
  • A media personality argues that global temperatures are not rising, because every year an increase is reported, such as 0.09 deg
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!