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
Rina8888 [55]
3 years ago
13

A sphere has a radius of 3 and a hemisphere has a radius of 6. Compare the ratio of the volume of the sphere to the volume of th

e hemisphere.
Mathematics
2 answers:
Trava [24]3 years ago
8 0
S=(4πr^3)/3, H=(4πr^3)/6

S/H=2rs^3/rh^3

S/H=(2*3^3)/6^3

S/H=54/216

S/H=1/4

So the volume of the hemisphere is 4 time the volume of the sphere.
mixas84 [53]3 years ago
3 0
Volume of a sphere:
V=4/3 π r³

V=4/3 π 3³ = <span>113.097335529
</span>
Volume of a Hemisphere:
V=½(4/3 π r³)

V=½(4/3 π 6³) = <span>452.389342117
</span>
113.097335529 to 452.389342117

Pretty much 1/4 right on the nuts (0.24999999999944737866981989309472)
You might be interested in
What is the total value of 245 $1 bills
Fantom [35]
What do you mean... $245???
3 0
3 years ago
Read 2 more answers
(2x+3y+4z)(4x^2+9y^2+16z^2-6xy-12yz-8zx)
erma4kov [3.2K]
1.1 Factoring: 4x2+9y2+16z2-6xy-12yz-8xz

Thoughtfully split the expression at hand into groups, each group having two terms :

Group 1: -6xy-12yz
Group 2: 16z2-8xz
Group 3: 4x2+9y2

Pull out from each group separately :

Group 1: (x+2z) • (-6y)
Group 2: (x-2z) • (-8z)
Group 3: (4x2+9y2) • (1)


Looking for common sub-expressions :

Group 1: (x+2z) • (-6y)
Group 3: (4x2+9y2) • (1)
Group 2: (x-2z) • (-8z)
6 0
2 years ago
Is there a difference in the amount of airborne bacteria between carpeted and uncarpeted rooms? In an experiment, seven rooms we
Annette [7]

Answer:

C. There isn't much evidence to support a conclusion that the presence of carpet is associated with an increase or decrease in the mean bacterial concentration of air.

Step-by-step explanation:

A. There are outliers in these data, so we can't rely on the two-sample t test.

There are no outliers, as the seven rooms for both sample have similar size and function.

B. This test is unreliable because the populations we're sampling from are heavily skewed.

We don't know if the populations are heavily skewed, but this effect should be appeased by the sampling.

C. There isn't much evidence to support a conclusion that the presence of carpet is associated with an increase or decrease in the mean bacterial concentration of air.

Correct conclusion, as the P-value is surely greater than the significance level (usually 0.10 at most).

D. There is fairly strong evidence to support a conclusion that the presence of carpet is associated with an increase or decrease in the mean bacterial concentration of air.

There is no evidence as the P-value is greater than the significance level.

4 0
3 years ago
The equation of a circle is (x + 3)2 + (y + 5)2 = 8. Determine the coordinates of the center of the circle.
Illusion [34]
The equation of the circle is written as: (x - h)² + (y - k)² = r²

(h,k) are the points of the center of the circle.
r is the radius.

In case of the given equation the center is (-3,-5)

Hope this helps :)
8 0
3 years ago
Solve.<br> |2x - 12|+ 8 = 8
Andrews [41]

Answer:

x=6

Step-by-step explanation:

6 0
3 years ago
Other questions:
  • What is the answer to 103.89=15.12+3×
    13·1 answer
  • If you need $8000 to travel to Europe after you graduate in 4 year. How much would your monthly deposits need to be if your acco
    8·1 answer
  • The picture shows a barn door what is the distance BC between two horizontal parallel bars?
    12·1 answer
  • Please help ASAP!! I need what the correlation between the two
    11·1 answer
  • Mai is making personal pizzas for a party she uses 10 ounces of cheese to make four pizzas at this rate how much cheese will she
    15·1 answer
  • Point A is located at (−2, 2), and point M is located at (1, 0). If point M is the midpoint of segment AB, find the location of
    15·1 answer
  • Please help! Idk what to do I've tried so many ways.
    13·2 answers
  • Write a rule for the graph below, and find the slope and y-intercept. Enter your
    7·1 answer
  • The number of people who attended a concert on Friday was 34 the number of people who attended the same concert on Saturday. A t
    11·1 answer
  • Which expression is equivalent to 36x² - 25?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!