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Yuri [45]
3 years ago
7

Solve the following equation.

Mathematics
1 answer:
natima [27]3 years ago
8 0
5(z-4)-z=4z-20
5z-20-z=4z-20
4z=4z
z=z
The answer is C
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6z^6-21z^4-12z^2<br>give in step by step explanation​
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This expression cannot be simplified, as you cannot add or subtract variables raised to different exponents.

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Which equation shows the quadratic formula used correctly to solve 7x2 = 9+ x for x?
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Answer:

x = (1 + sqrt(253))/14 or x = (1 - sqrt(253))/14

Step-by-step explanation:

Solve for x:

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7 x^2 - x - 9 = 0

x = (1 ± sqrt((-1)^2 - 4×7 (-9)))/(2×7) = (1 ± sqrt(1 + 252))/14 = (1 ± sqrt(253))/14:

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2 years ago
a bird flies from the bottom of a canyon that is 81.8 feet below sea level to a nest that is 596 3/5 feet above sea level. what
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= 678.4 feet
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