The grocery store is having a sale on frozen vegetables. 4 bags are being sold for 11.96. At this rate what is the cost of 1 bag
2 answers:
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Answer: d. 512
Step-by-step explanation:
You need to remember that:
Then, given the equation:
You can find the value of "n" that make the equation true, by solving for "n".
So, to solve for "n", you need to raise both side of the equation to power 3. Therefore, you get:
Then, the value of "n" that makes the equation true is: 512 (You can observe that this matches with the option d).
Answer:
70.7
Step-by-step explanation:
a2 +b2 = c2
50^2 + 50^2 = c2
c2 = 2500+2500
c = = 70.7
I hope im right!
Solution:
From Bernoulli equation
ρ
+ ρgh =
ρ
, where ρ is density of water, h – height difference and
and
are the velocities in upper and lower cross sections correspondingly. We take into account that the pressure in both cross-sections is the same and equal to the atmospheric one.
From the continuity and assuming water incompressible:
=
, where
and
are the corresponding cross-sections. As the lower diameter is twice as low as the upper one, we can conclude that
Inserting it back into Bernoulli equations produces:
and the flow rate is