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
Natasha2012 [34]
3 years ago
9

If two pyramids are similar and the ratio between the lengths of their edges is

Mathematics
2 answers:
mihalych1998 [28]3 years ago
6 0

Answer:

Answer is 64:729 will be the ratio of their volumes.

Pavel [41]3 years ago
4 0
The answer is A! Hoped I was able to help! If so mark me brainly it would help a lot!
You might be interested in
WILL MAKE BRAINLIEST!!! A Ferris wheel has a diameter of 220 feet and the center of the wheel is 125 feet above the ground. The
daser333 [38]
Since the radius of a circle is half its diameter, the radius of our Ferris wheel is r= \frac{220}{2} =110ft

Next, we are going to convert from revolutions per minute to degrees per second.
We know that t<span>he wheel makes a complete turn every 2 minutes, so it makes a complete turn in 120 seconds. Since there are 360° in a complete turn, we can set up our conversion factor:
</span>\frac{1*360}{120}=3 degrees per second 
<span>
Now, lets find the height:
</span>We know that <span>the passenger is at the lowest point on the wheel when t=0; since the wheel is 125 feet above the ground, at t=0 h=125. To find t at the top, we are going to take advantage of the fact that the wheel will turn 180° from the lowest point to the top and that it turns 3° every second:
</span>t= \frac{180}{3}
t=60
Notice that the height at the top is the diameter of the wheel plus the height above the ground, so h=220+125=345.

To model the situation we are going to use the cosine function, but notice that cos (\alpha) is 1 when \alpha =0 and -1 wen \alpha =180. Since we want the opposite, we are going to use negative cosine.
Notice that we want \alpha =180 when t=60, so we are going to use -cos(3t). Next, we are going to multiply our cosine by the radius of our wheel: -110cos(3t), and last but not least we are going to add the sum of the radius of the wheel plus the height above the ground:
h=110+125-110cos(3t)
h=225-110cos(3t)

Now that we have our height function lets check if everything is working:
<span>the passenger is at the lowest point at t=0; we also know that the lowest point is 125 feet above the ground, so lets evaluate our function at t=0:
</span>h=225-110cos(3t)
h=225-110cos(3*0)
h=125 feet 
So far so good. 
We also know that at t=60, our passenger is 345 feet above the ground, so lets evaluate our function at t=60 and check if coincides:
h=225-110cos(3t)
h=225-110cos(3*60)
h=225-110cos(180)
h=345feet 

We can conclude that cosine function that express the height h (in feet) of a passenger on the wheel as a function of time t (in minutes) ) is: h=225-110cos(3t)
8 0
3 years ago
Find the sum or difference (2c-4)+(5c+11)
laiz [17]
Remove parentheses
2c - 4 + 5c + 11
Combine like terms
Answer: 7c + 7
7 0
3 years ago
3. Rectangle J is 6 feet wide and 9 feet long.
Furkat [3]

Answer:

No it's not!

Step-by-step explanation:

because the length (long) of J and K are totally different whereas the breadth(width) of J and K is also different which does make similar in sense

8 0
2 years ago
New York City is a popular feild trip destination. This year the senior
lilavasa [31]

Step-by-step explanation: look so if you have

shcool A its 8v+4b=12

and

School B: 12v+4b= 16

since both classes used 4 busses we can use elimination by subtracting the A class Equation from the b class equation to solve from v for its value Then, use either equation and the now found value for v to solve for b.

You should find part of the process to be

12v+4b-(8v+4b)=12-16 which shows the van holds only a few people even before continuing the solution.

Answer -4

5 0
3 years ago
Plz help need helppppppp
e-lub [12.9K]
X+60 + 70 = 180 (straight line)
x+130=180
x= 180 -130
x=50
7 0
3 years ago
Read 2 more answers
Other questions:
  • Any answers for this
    10·1 answer
  • A storage box has a length of 9 in., a width of 6 in., and a height of 8 in.
    12·2 answers
  • Let f and g be linear functions with equations f(x) = m1x + b1 and g(x) = m2x + b2.
    11·1 answer
  • |x-9|=-4<br> How would I go to solve this equation
    9·1 answer
  • Find vale of z 6=z+2​
    12·1 answer
  • Solve five and three sixths minus two and one third
    5·2 answers
  • Can someone help me??
    6·2 answers
  • Divide.<br> 8.43) 12.645<br> The quotient is
    11·1 answer
  • In the general population, the mean IQ is 100 with a standard deviation of 15. Dr. Robbins wants to see if a class of statistics
    6·1 answer
  • The kinetic energy(Jules) of an object can be calculated using the following formula:
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!