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bagirrra123 [75]
4 years ago
14

Suppose it is 40 inside your fridge and 340 inside your oven when the power goes out the fridge temperature starts rising at the

rate of 5 per hour the oven temperature startes dropping at the rate of 45 per hour
Mathematics
1 answer:
motikmotik4 years ago
3 0
Contain down both lines I can't see
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Determine X and Y<br>(2+i) (x+yi) = -7+3i​
IrinaK [193]

Answer:

x=-11\5+13\5i-iy

y=ix+(13\5+11\5i)

Step-by-step explanation:

x+yi=-7+3i\2+i

x+yi=\frac{\left(-7+3i\right)\left(2-i\right)}{\left(2+i\right)\left(2-i\right)}

x+yi=-11\5+13\5i

x=-11\5+13\5i-yi

x=-11\5+13\5i-iy

x+yi=\frac{-7+3i}{2+i}

x+yi=\frac{\left(-7+3i\right)\left(2-i\right)}{\left(2+i\right)\left(2-i\right)}

x+yi=\frac{-11+13i}{5}

x+yi=-\frac{11}{5}+\frac{13}{5}i

yi=-\frac{11}{5}+\frac{13}{5}i-x

\frac{iy}{i}=\frac{-\frac{11}{5}+\frac{13}{5}i-x}{i}

y=\frac{-\frac{11}{5}+\frac{13}{5}i-x}{i}

7 0
4 years ago
Solve x2 – 8x = 3 by completing the square. which is the solution set of the equation
attashe74 [19]
I hope this helps you 1.x^2-8x-3=0 disctirminant =(-8)^2-4.1. (-3) disctirminant =64+12 disctirminant =76 x1,2= -b(+,-)square root of disctirminant /2a x1=-(-8)+square root of 76/2.1 x1=8+square root of 76/2 x2=8-square root of 76/2
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Nina draws the model at the right to represent the relationship 8 times as many as 4 is 32. Nina thinks she can label the model
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Um yes come on thats so simple

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