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ASHA 777 [7]
2 years ago
8

I need it step by step​

Mathematics
1 answer:
elena-s [515]2 years ago
4 0

Answer:

Step-by-step explanation:

we want y by itself...sooo

y - 19 = - \frac{6}{10}(x - (-5))

y - 19 = - \frac{6}{10}(x+5)

y - 19 =  - \frac{6}{10}x - \frac{6}{2}

y = - \frac{6}{10}x - 3 +19

y = - \frac{6}{10}x + 16

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Answer:

T+V/I

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multiply both sides by I to get rid of fractions ti=V

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What will be the index of 2 for its value equal to 1/2​
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Answer:

the index of 2 is -1

Step-by-step explanation:

2^{-1}

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Find the area of a circle with a radius of 6 centimeters. Round to the nearest tenth
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7 0
2 years ago
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

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dx/ x  =  - dt/100

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C =  ln (50)

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Ln x  =  - t/100  + Ln(50)   or

e∧ Lnx   =  e ∧ ( -t/100 + Ln(50))

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x  = e∧ ( -t/100) * 50

x  =  50*e∧ -t/100

4 0
2 years ago
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