Answer:
12.5
Step-by-step explanation:
Let individual time taken by Anthony, Brian and Chris = t1 , t2 , t3 respectively
So, total time taken by A & B = 1 / t1 + 1 / t2 , lets suppose = 10 {i}
Total time taken by A & C = 1 / t1 + 1 / t3 , lets suppose = 15 {ii}
Total time taken by B & C = 1 / t2 + 1 / t3 , lets suppose = 20 {iii}
From {i} , 1 / t2 = 10 - 1 / t1
From {ii} 1 / t1 = 15 - 1 / t3
By above two eqtns , 1 / t2 = 10 - (15 - 1 / t3)
1 / t2 = 1 / t3 - 5
Putting in {iii} , 1 / t3 - 5 + 1 / t3 = 20
2 / t3 = 25
t3 = 12.5
Answer:
No.
Step-by-step explanation:
A function should never have a shape like this.
Answer:
169.04 in² (nearest hundredth)
Step-by-step explanation:
Surface area of a cone = 
r² + r
(where r = radius of the base and = slant height)
Given slant height = 10 and surface area = 188.5
Surface area = r² + r
188.5 = r² + 10r
r² + 10r - 188.5 = 0
r = 
= 4.219621117...
Volume of a cone = (1/3)r²h
(where r = radius of the base and h = height)
We need to find an expression for h in terms of using Pythagoras' Theorem a² + b² = c², where a = radius, b = height and c = slant height
r² + h² = ²
h² = ² - r²
h = √(² - r²)
Therefore, substituting found expression for h:
volume of a cone = (1/3)r²√(² - r²)
Given slant height = 10 and r = 4.219621117...
volume = 169.0431969... = 169.04 in² (nearest hundredth)
Surface area of a cylinder=(2xxradiusxheight)+(xradius^2x2)
Radius=Diameter/2
Radius=6/2
=3 m
Height=14 m
Surface area=(2xx3x14)+(x3^2x2)
Surface area=263.8937829+56.54866776
Surface area=320.4424507 m^2
=320.4 m^2
Tin of paint: 90 m^2/3.70 euros
Number of tins needed=320.4/90
=3.56 cans of paint
Price=3.56x3.70
Price=13.172 euros
Hope this helps!
P.S. the “^” sign means “to the power of”
ʕ•ᴥ•ʔ
Answer:
25
Step-by-step explanation:
First you have to figure out how much each is worth by itself.
carmel =30
coco chips =50
coconut= 45
then add all of them you'd get 125
subtract 125 from 150 and get 25
