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Allushta [10]
3 years ago
7

Please help me with this i don’t understand

Mathematics
1 answer:
nevsk [136]3 years ago
4 0

Answer:

20.12 ft

Step-by-step explanation:

if you take 6^2 and subtract that from 21^2 then you will get your answer after finding the square root of the answer that the calculator gives you.

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Find the following when a = -1, b = 2, c = -1/4<br> (4b - 3)/(2a) -1
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We substitute the given into the equation
given: a=-1, b=2, c=\frac{-1}{4}
=(\frac{4b-3}{2a}-1
=\frac{4(2)-3}{2(-1)}-1
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=\frac{5}{-2}-1
to continue, we can either find a common denominator or change the fraction to decimal.
Fraction to Decimal:
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OR Common Denominator:
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=\frac{5}{-2}+\frac{2}{-2}
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3 years ago
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