All categories

3 years ago

What is the volume of this?

Mathematics

1 answer:

ankoles [38]3 years ago

7 0

The volume of a sphere = 4πr^3/3

The volume of a half of sphere = 2πr^3/3 = 2 π (27)/3 = 18π

The volume of a cone= π r^2 h/3 = π (9)(8)/ 3 = 24 π

Total volume = 18 π + 24π = 42π = 42 x 3.14 = 131.9 cm^3

You might be interested in

Find the inverse of g(x) = 2x^3 +3 Step by step working please I want to learn

malfutka [58]

Set g(x) as y. Then you get y = 2x^3 + 3. Switch Y with X and you get x = 2y^3 + 3. Now you can put everything with x getting, y = cuberoot[(x-3)/2]

3 0

2 years ago

Read 2 more answers

The space allowed for the mascot on a school's Web page is 75 pixels wide by 60 pixels high. Its digital image is 500 pixels wi

anzhelika [568]

Answer:

It will be 60 pixels high and 75 pixels wide

Step-by-step explanation:

$\frac{400}{60}=\frac{500}{x}$

The space allowed for the mascot on a school's Web page is 75 pixels wide by 60 pixels high
Its digital image is 500 pixels wide by 400 pixels high

So, the expression becomes

$\frac{400}{60}=\frac{500}{x}$

$\mathrm{Apply\:fraction\:cross\:multiply:\:if\:}\frac{a}{b}=\frac{c}{d}\mathrm{\:then\:}a\cdot \:d=b\cdot \:c$

$400x=60\cdot \:500$

$400x=30000$

$\mathrm{Divide\:both\:sides\:by\:}400$

$\frac{400x}{400}=\frac{30000}{400}$

$\mathrm{Simplify}$

$x=75$

Therefore, it will be 60 pixels high and 75 pixels wide

Keywords: pixel, ratio

Learn more about ratio from brainly.com/question/4287633

#learnwithBrainly

6 0

3 years ago

1. Is the function g(x) increasing or decreasing over the interval -2 < x <-1?

Sergeeva-Olga [200]

Answer:

g(x) increasing

h(x) decreasing

Step-by-step explanation:

Since the value of y gets larger as the value of x increases over the interval -2 <x<-1 for the function g(x), the function is increasing

Since the value of y gets smaller as the value of x increases over the interval -2 <x<-1 for the function h(x), the function is decreasing

5 0

3 years ago

The point (6, - 5) is reflected across the y axis what is the new point

jonny [76]

Answer:

(-6, -5)

Step-by-step explanation:

Reflection across the y-axis leaves the point on the same horizontal line, but with the sign of its x-coordinate changed.

(x, y) ⇒ (-x, y) . . . . . reflection across the y-axis

(6, -5) ⇒ (-6, -5)

The image point is (-6, -5).

8 0

2 years ago

Seat plan. She wishes to arrange them in such a way that only boys or girls

bixtya [17]

Answer: hmmm

Step-by-step explanation:

5 0

3 years ago