Answer:
Pipe 1 twice as fast as pipe 2.
(Pipe 1 time * Pipe 2 time) / (Pipe 1 time + Pipe 2 time) = combined time
(x * (x/2)) / (x + x/2) = 10
(x^2/2) / 1.5 x = 10
x^2 / 2 = 15 x
x^2 /2 - 15 x = 0
x = 30 (slow pipe)
x/2 = 15 (fast pipe)
So it would take 30 hours using the slow pipe only.
Step-by-step explanation:
Answer: 4
Step-by-step explanation:
( f o g ) (3) means f(g(3)) so...
First: plug 3 into g(x) = x^ (2-1)
3^ (2-1) is 3^1 = 3
Next: plug 3 into f(x)= 2^(x-1)
2^(3-1) is 2^(2) > 2×2 = 4
Answer:
11/21.
BG has a total of 11 points (when you include 0), and there are 21 points total. 11/21 cannot be simplified, your final answer is 11/21.
Answer:
your answer would be D
Step-by-step explanation:
Substitute the x= 3y-1 in place of the x in the second equation
Subtract Like terms
Add 3 to both sides
Divide by 3(the coeffcient of y)
Answer is 5
Answer:
you can use the quadratic formula to get theses:-
x =[-8 +/- sqrt(8^2 - 4*2*-3)] / 4
= -2 +/- sqrt88) / 4
= 0.35, -4.35 to nearest hundredth
Step-by-step explanation:
