All categories

3 years ago

A radius of the base cone is 3cm and altitude is 9cm calculate the volume.

1 answer:

6 0

$\bf \textit{volume of a cone}\\\\ V=\cfrac{\pi r^2 h}{3}~~ \begin{cases} r=radius\\ h=\stackrel{altitude}{height}\\ \cline{1-1} r=3\\ h=9 \end{cases}\implies V=\cfrac{\pi (3)^2(9)}{3}\implies V=27\pi \implies V\approx 84.8$

You might be interested in

Solve: 3x 5(x - 2) = 4 - (2x 1)

Ivanshal [37]

3x*5x-2=4-2x*1
15x-2=4-2x
13x=2
x=6.5

5 0

3 years ago

BESTIES I NEED ANSWERES TO MY MATH QUATSIONS DDD: (・_・ヾ

igomit [66]

Answer:

Step-by-step explanation:

8 0

3 years ago

2.<br> Which of the functions below is an inverse of the quadratic function f(x) = x2 - 3 ?

mezya [45]

Answer:

the inverse of the quadratic function $f(x) = x^2 - 3$ is $\mathbf{f^{-1}(x)=\pm \sqrt{x+3}}$

Step-by-step explanation:

We need to find inverse of the quadratic function $f(x) = x^2 - 3$

Let

$y=x^2-3$

Replace x and y

$x=y^2-3$

Now, we will solve for y

Adding 3 on both sides

$x+3=y^2-3+3$

$x+3=y^2$

Taking square root on both sides

$\sqrt{y^2}=\sqrt{x+3}\\y=\pm \sqrt{x+3}$

Now replace y with $f^{-1}(x)$

$f^{-1}(x)=\pm \sqrt{x+3}$

So, the inverse of the quadratic function $f(x) = x^2 - 3$ is $\mathbf{f^{-1}(x)=\pm \sqrt{x+3}}$

3 0

3 years ago

‼️ WILL LIST BRAINLIEST ‼️ -5/6 x -3/4

ella [17]

Answer:

5/8

that's the answer:)

6 0

3 years ago

Read 2 more answers

If Max makes 45 out of 60 shots with the basketball, how many would you expect him to make if he only shot the basketball 15 tim

exis [7]

Answer:

Step-by-step explanation:

Probability of Max making a shot is 45/60=¾

Here, probability, p=¾ or 0.75

The trials n=15

E=np where E is expectation

Now, when the shots out of 15 trials will be given by np=15*¾=11.25 shots

Rounded off to the nearest interger, this is approximately 11 shots.

Therefore, the possible number of shots in 15 trials for Max is equivalent to 11

7 0

3 years ago

A radius of the base cone is 3cm and altitude is 9cm calculate the volume.​

A radius of the base cone is 3cm and altitude is 9cm calculate the volume.