Answer:
The answer is 324π m².
Step-by-step explanation:
Given that the surface area of sphere formula is S.A = 4×π×r² where r is radius. The diameter of sphere is 18m so you have to divide it by 2 to find it's radius :
Then substitute into the formula :
9/24
28/24
If you need an explanation just ask
Answer:
(√9)^2x-1/2 = 1/81
3^2x-1/2 = 1/(3)⁴. (as √9 = 3)
3^2x-1/2 = 3^-⁴. (as 1/a^m = a^-m)
as base are equal exponents are equal
so 3 gets cancelled out
2x-1/2 = -4
(4x-1)/2 = -4
4x-1 = -8
x = -7/4
hope this helps
Step-by-step explanation:
Answer:
a budget that is based on a certain level of sales revenue; expense estimates for food, labor, and other costs are then calculated based ... making future predictions about the budget based on current situations and trends ... a method that involves estimating expenses for a future period as a percentage of the sales forecast.
Step-by-step explanation:
Answer:
P ( Black then Red ) = 0.24725
Step-by-step explanation:
Given:-
- Red Checkers = 5
- Black Checkers = 9
Find:-
A checker is selected, kept out of the bag, and then another checker is selected. What is P(black, then red)?
Solution:-
- We will utilize the fundamental counting principle. A bag contains a total of ( 5 + 9 ) = 14 checkers in total.
- We will draw two checkers one at a time without replacement.
First Draw: Black = 9 possible outcomes
P ( Black ) = 9 / 14
Second Draw: Red = 5 possible outcomes
P ( Red ) = 5 / 13
- The required probability P(black, then red) for dependent events is given as:
P ( Black then Red ) = P (Black first draw) * P ( Red second draw)
= ( 9 / 14 ) * ( 5 / 13 )
= 0.24725