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
mote1985 [20]
1 year ago
6

A cone has height $h$ and a base with radius $r$ . You want to change the cone so its volume is doubled. What is the new height

if you change only the height
Mathematics
2 answers:
Viktor [21]1 year ago
3 0

\textit{volume of a cone}\\\\ V=\cfrac{\pi r^2 h}{3}~~ \begin{cases} r=radius\\ h=height\\[-0.5em] \hrulefill\\ V=\stackrel{doubled}{2V} \end{cases}\implies 2V=\cfrac{\pi r^2 h}{3}\implies V=\cfrac{\pi r^2 h}{3\cdot 2} \\\\\\ V=\cfrac{\pi r^2}{3}\cdot \cfrac{h}{2}\implies V=\cfrac{\pi r^2\left( \frac{h}{2} \right)}{3}\qquad \textit{half the previous "h"}

grandymaker [24]1 year ago
3 0

Answer: 2h

Step-by-step explanation:

You might be interested in
Need help on this please this one is hard for me
pshichka [43]

9514 1404 393

Answer:

  y = -7x

Step-by-step explanation:

The line goes through the origin, so the y-intercept is b=0.

The line goes through the point (1, -7), so has a "rise" of -7 for a "run" of 1. The slope is ...

  m = rise/run = -7/1 = -7

Then the slope-intercept form equation is ...

  y = mx + b

  y = -7x

6 0
2 years ago
What do the letters I and P and R mean in "IPRT"?
cupoosta [38]
So P stands for principle which is the amount of the original investment, R stands for rate which is the percent but must be turned into a decimal, T stands for time for example if the time was in a certain amount of months then you plug that in with x/12, and lastly I stands for interest which is the original investment outcome ^_^
6 0
2 years ago
3,000 is 1/10 of?-<br><br>300<br><br>300,000<br><br>3,000<br><br>30,000​
NeX [460]

Answer:

30,000​

Step-by-step explanation:

3,000 times 10 is 30,000, therefore 30,000/10=3,000

7 0
2 years ago
Read 2 more answers
Which of the following is a complex number?
gtnhenbr [62]

Good morning ☕️

______

Answer:

A ,B and D

___________________

Step-by-step explanation:

Look at the photo below for the answer.

:)

7 0
3 years ago
Help me plsssssssrrrrrrrrrrrrrrrrr
MAXImum [283]

Answer:

2 TO 1

2:1

Step-by-step explanation:

8 0
3 years ago
Other questions:
  • A 70 cm long stick is cut into two parts in such a way that the longer part is 20 cm longer than the shorter part. How long is e
    8·1 answer
  • Find x if y = –2. 8 – 2xy = 24 A- 1/4 B-4 C. 8 D.-4
    6·1 answer
  • Evaluate the expression
    11·1 answer
  • A game uses the two spinners shown in the image. What is the probability that you will spin "East" and "1"
    14·2 answers
  • Can you plz help me????????
    5·2 answers
  • Simon had 2 cups of jelly he put the jelly in to 1/3 cup jars how many jars of jelly did he make
    13·1 answer
  • Solve for x.<br> Enter your answer in the box.<br> X=
    14·1 answer
  • PLEASE FAST 10 POINTS
    13·1 answer
  • Math help please and thank you
    6·2 answers
  • Least common denominator of 3/5 and 11/20
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!