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cestrela7 [59]
3 years ago
5

HELP WILL GIVE BRANLIEST

Mathematics
1 answer:
max2010maxim [7]3 years ago
7 0

Answer:

B

Step-by-step explanation:

B makes more sense to me.. If it comes out wrong I deeply apologize-

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I need help with this question!!!!
Genrish500 [490]

Answer: The answer is A over B if you know what im sayin

Step-by-step explanation:

You take A and B and put the A over the B.

7 0
2 years ago
amal is 167 cm tall. Which expression finds Jamal’s height in dekameters? Use the metric table to help answer the question.
LuckyWell [14K]
0.167 every                       .1 per cm
7 0
3 years ago
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Suppose a tank contains 400 gallons of salt water. If pure water flows into the tank at the rate of 7 gallons per minute and the
Strike441 [17]

Answer:

Step-by-step explanation:

This is a differential equation problem most easily solved with an exponential decay equation of the form

y=Ce^{kt}. We know that the initial amount of salt in the tank is 28 pounds, so

C = 28. Now we just need to find k.

The concentration of salt changes as the pure water flows in and the salt water flows out. So the change in concentration, where y is the concentration of salt in the tank, is \frac{dy}{dt}. Thus, the change in the concentration of salt is found in

\frac{dy}{dt}= inflow of salt - outflow of salt

Pure water, what is flowing into the tank, has no salt in it at all; and since we don't know how much salt is leaving (our unknown, basically), the outflow at 3 gal/min is 3 times the amount of salt leaving out of the 400 gallons of salt water at time t:

3(\frac{y}{400})

Therefore,

\frac{dy}{dt}=0-3(\frac{y}{400}) or just

\frac{dy}{dt}=-\frac{3y}{400} and in terms of time,

-\frac{3t}{400}

Thus, our equation is

y=28e^{-\frac{3t}{400} and filling in 16 for the number of minutes in t:

y = 24.834 pounds of salt

6 0
3 years ago
Help help!!!!!!!!!!!!!!!!!!!!!!!
Paladinen [302]

Answer:

bottom right

Step-by-step explanation:

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2 years ago
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Find total area of a regular pyramid with base of 2 and altitude of 3
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You are not giving much information so the assumption is the base is 2 = meters and the height is 3 meters.<span>
Find total area of a regular pyramid with base of 2 and altitude of 3
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Surface Area = 16.64911 m²
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3 years ago
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