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natulia [17]
3 years ago
15

Help please help me I need this

Mathematics
1 answer:
mixer [17]3 years ago
3 0

Answer:

\frac{5+-\sqrt{53} }{2}

Step-by-step explanation:

in the equation given these are the values:

a=1   b= -5     c= -7

if we plug this in the quadratic formula \frac{-(-5)+-\sqrt{(-5)^2-4(1)(-7)} }{2(1)}

this is simplified to \frac{5+-\sqrt{53} }{2}

hope this helped

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Step-by-step explanation:

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A 40 yd polygon and 15 yd polygon are similar. find the area of their ratios
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<span><span><span> </span> </span> </span> So, the 40 yard polygon has <span> <span> 7.1111111111</span>times the area of the 15 yard polygon.
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Read 2 more answers
A coin bank contains only quarters and dimes. The total value of the coins in the bank is $8.80. If the dimes were quarters and
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Answer:

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Step-by-step explanation:

Let the number of dimes be d and quarters be q

<u>The value is $8.80 = 880¢, so:</u>

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<u>If the dimes were quarters and the quarters were dimes, the coins' total value would be $7.30 or 730¢</u>

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  • d = -378/-21
  • d = 18
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3 years ago
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