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Virty [35]
3 years ago
8

Any help is appreciated ​

Mathematics
2 answers:
8_murik_8 [283]3 years ago
7 0

Answer:

It can't be C or D. I think it could be A.

faltersainse [42]3 years ago
5 0

Answer: C and D I think

Step-by-step explanation:

The graph is negative and the last two will be so these are the only reasonable answers

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I will make you the brainleist!!!! Please explain and no guessing. Thank you!! Ps due in 10
aniked [119]
Is this even a question? its 66/100 you always use the first examining over 100.... makes sense
5 0
3 years ago
Read 2 more answers
a) Suppose that a large mixing tank initially holds 300 gallons of water in which 50 pounds ofsalt have been dissolved. Pure wat
Kay [80]

Answer:

x  =  50*e∧ -t/100

Step-by-step explanation:

We assume:

1.-That the volume of mixing is always constant 300 gallons

2.-The mixing is instantaneous

Δ(x)t   =  Amount in  - Amount out

Amount  =  rate * concentration*Δt

Amount in  =  3 gallons/ min * 0  =  0

Amount out  = 3 gallons/min *  x/ 300*Δt

Then

Δ(x)t/Δt  =  - 3*x/300    Δt⇒0   lim Δ(x)t/Δt  =  dx/dt

dx/dt  =  - x/100

dx/ x  =  - dt/100

A linear first degree differential equation

∫ dx/x   =  ∫ - dt/100

Ln x  =  - t/100  +  C

initial conditions to determine C

t= 0     x =  50 pounds

Ln (50) = 0/100 * C

C =  ln (50)

Then final solution is:

Ln x  =  - t/100  + Ln(50)   or

e∧ Lnx   =  e ∧ ( -t/100 + Ln(50))

x  =  e∧ ( -t/100) * e∧Ln(50)

x  = e∧ ( -t/100) * 50

x  =  50*e∧ -t/100

4 0
2 years ago
Seth earns 152 in 4 days. At that rate how many days will it take him to earn 532
djverab [1.8K]
Please use $ signs when discussing US currency.  

<span>$152 in 4 days. At that rate how many days will it take him to earn $532

One way to solve this is to set up and solve an equation of ratios:

 $152         $532
---------- = ---------
4 days           x
                                                2128
Then 152x = 4(532), and  x = ---------- = 14.  It'll take Seth 14 days to earn                                                                             $532.
                                                  152</span>
3 0
3 years ago
Read 2 more answers
Find the area of a square with sides equaling 7ft.
kondor19780726 [428]
28 because there’s 4 sides to a square and 4 times 7 is 28
8 0
2 years ago
Work out the area of this semi circle Take pi to be 3.142 and write down all the digits given by your calculator
Liula [17]

Answer:

628.4cm²

Step-by-step explanation:

Find the diagram attached

Area of the semi circle = πr²/2

r is the radius = 10cm

Area of the semi circle = π(10)²/2

Area of the semi circle = 3.142(100)/2

Area of the semi circle = 314.2×2cm²

Area of the semi circle =628.4cm²

Hence the area of the semicircle is 628.4cm²

5 0
3 years ago
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