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Blizzard [7]
3 years ago
9

Prove that there are no solutions in integers x and y to the equation 2x^2 + 5y^2 = 14

Mathematics
1 answer:
iren [92.7K]3 years ago
5 0
Solve the equation for y using the formula for slope: y + mx + b

2x^2 + 5y^2 = 14
5y^2 = -2x^2 + 14
y^2 = -2/5x^2 + 14/5
y = the sq root of -2x^2/5 + 14/5

There is no integer solution to the square root of a negative number.
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Dr.sox paid $1580 for a new computer system. She also paid 6.5% sales tax. How much was total cost?
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Answer:

$1,682.70

Step-by-step explanation:

  1. Convert the percent into a decimal by multiplying by 0.01: the percent in this problem is 6.5%, so when you multiply by 0.01, you get 0.065
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Kitty [74]
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Answer:

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