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
Hunter-Best [27]
2 years ago
13

Surface area of hemisphere with diameter of 18

Mathematics
1 answer:
saul85 [17]2 years ago
6 0

Answer:

In terms of pi: 243\pi

in decimal form: 763.407

Step-by-step explanation:

to find surface area of a hemisphere the formula is,

3\pi r^{2}

diameter (d) = 18

radius = d / 2 = 18 / 2

radius = 9

3\pi (9)^{2} \\3\pi (81)\\243\pi \\OR\\763.407

You might be interested in
Mrs. Stevens is wanting to buy new border for her math bulletin board in the hallway l. The length of the board is 6.9 meters. T
kiruha [24]

Answer:

The quantity of board which Mr. Stevens need to buy is 22.4 meters

Step-by-step explanation:

Given as :

The length of board = 6.9 meters

The width of board = 4.3 meters

Let The measure of new board = x meter

Now,

The measure of new board = The perimeter of board

∵ The board is of rectangle figure

As, The perimeter of rectangular board = 2 × Length + 2 × width

So, The measure of new board = 2 × Length + 2 × width

or, x = 2 × 6.9 + 2 × 4.3

or, x = 13.8 + 8.6

or, x = 22.4 meters

So, The measure of new board =  x = 22.4 meters

Hence The quantity of board which Mr. Stevens need to buy is 22.4 meters Answer

3 0
3 years ago
8 more than the quotient of a number p and 8 is 12
Musya8 [376]

Answer:

96

Step-by-step explanation:


7 0
3 years ago
Prove the proposition p (0), where p (n) is the proposition "if n is a positive integer greater than 1, then n2 > n." what ki
expeople1 [14]

Answer:

Vacuous proof is used.

Step-by-step explanation:

Given:

Proposition p(n) :

"if n is a positive integer greater than 1, then n² > n"

To prove:

Prove the proposition p (0)

Solution:

Using the proposition p(n) the proposition p(0) becomes:

p(0) = "if 0 is a positive integer greater than 1, then 0² > 0"

The proposition that "0 is a positive integer greater than 1" is false

Since the premises "if 0 is a positive integer greater than 1" is false this means the overall proposition/ statement is true.

Thus this is the vacuous proof which states that:

if a premise p ("0 is a positive integer greater than 1") is false then the implication or conditional statement p->q ("if n is a positive integer greater than 1, then n² > n") is trivially true.

So in vacuous proof, the implication i.e."if n is a positive integer greater than 1, then n2 > n." is only true when the antecedent i.e. "0 is a positive integer greater than 1" cannot be satisfied.

6 0
3 years ago
What could this be guys pls
hjlf
B. (3,-1) is the answer.
it is in the shaded part so it’s a solution
8 0
2 years ago
The value of x in this system of equations is 1
Vinvika [58]
I don’t know but i need points
3 0
3 years ago
Other questions:
  • Find the measure of angle 1.
    6·1 answer
  • A figure is translated 6 units to the left. How will the coordinates change?
    13·1 answer
  • Does anybody know what they mean when for question 3 says evaluate the expression wen c=3? Please help...
    14·1 answer
  • A random sample of adult female reaction times has a sample mean of x¯=394.3 milliseconds and sample standard deviation of s=84.
    14·1 answer
  • What is the simplified form of 7 square root of x times 4
    8·1 answer
  • Hannah scored a total of 170 points on two math tests. The score of the first test was 6 points lower than the second test. How
    10·1 answer
  • (3 pts)If 1 of the subjects is randomly selected, find the probability of selecting someone who was sentenced to prison or enter
    12·1 answer
  • Drusilla replaces the light bulb in the hall closet every 9 months and replaces the air filter every 6 months she just replaced
    12·1 answer
  • If the garage is open Monday to Saturday, determine the probability that the garage gets any demand for windscreen on Monday.
    11·1 answer
  • Please just give me the answer
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!