Answer:
The height of the water is 
Step-by-step explanation:
step 1
Find the volume of the tank
The volume of the inverted right circular cone is equal to

we have


substitute


step 2
Find the 25% of the tank’s capacity

step 3
Find the height, of the water in the tank
Let
h ----> the height of the water
we know that
If two figures are similar, then the ratio of its corresponding sides is proportional

substitute

where
r is the radius of the smaller cone of the figure
h is the height of the smaller cone of the figure
R is the radius of the circular base of tank
H is the height of the tank
we have
-----> volume of the smaller cone
substitute

Simplify


Answer:
Step-by-step explanation:
— That's how the notes start, and they only get murkier after that. ... I decide to do my daughter's homework for one typical week. ... So a good day of reading for me, assuming I like the book and I'm not looking for quotable ... Well, imagine if after putting in a full day at the office—and school is pretty much what
Answer:
a = 2, b = - 3, c = - 8
Step-by-step explanation:
Expand f(x) = a(x + b)² + c and compare coefficients of like terms, that is
a(x + b)² + c ← expand (x + b)² using FOIL
= a(x² + 2bx + b²) + c ← distribute parenthesis by a
= ax² + 2abx + ab² + c
Compare like terms with f(x) = 2x² - 12x + 10
Compare coefficients x² term
a = 2
Compare coefficients of x- term
2ab = - 12, substitute a = 2
2(2)b = - 12
4b = - 12 ( divide both sides by 4 )
b = - 3
Compare constant term
ab² + c = 10 , substitute a = 2, b = - 3
2(- 3)² + c = 10
18 + c = 10 ( subtract 18 from both sides )
c = - 8
Then a = 2, b = - 3, c = - 8
Hi, thank you for posting your question here at Brainly. To solve this problem, use this formula: F = P(1+i)^n, where F is the future worth, P is the present worth, i is the annual interest and n is the number of years. Substituting the values,
F = $200 (1+0.2)^3
F = $345.6
The answer is $345.6.