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KonstantinChe [14]
3 years ago
6

2x^2-5x+1=0 solve using quadratic formula

Mathematics
1 answer:
Gnesinka [82]3 years ago
5 0

Answer:

x=(5±√17)/4, or x ≈  2.281 and 0.219

Step-by-step explanation:

2x^{2} -5x+1\\

plug into quadratic formula

5+- \sqrt{(-5)-4(2)(1)}/2(2)

simplify

5+-\sqrt{25-8} /4

\frac{5+-\sqrt{17} }{4}   ≈  2.281 and 0.219

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A certain bay with very high tides displays the following behavior. In one 12-h period the water starts at mean sea level, rises
Firdavs [7]

Answer:

the required equation is; y = 21 sin(πt/6)

Step-by-step explanation:

Given the data in the question;

Water rises above sea level = 21 ft

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so

maximum = 21 ft and also

minimum = 21 ft

Amplitude = ( maximum + minimum ) / 2

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Amplitude = ( 21 + 21 ) / 2 = 42/2 = 21 ft

Period = 12 hours

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so

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3 years ago
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Using a Graph we can determine the greatest area the rectangle can have using the midpoint between the two w-intercepts.

7 0
3 years ago
Can the sides of a triangle have lengths 3, 6, and 14?
fomenos

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Step-by-step explanation:

7 0
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Read 2 more answers
The graph of the function P(x) = −0.52x2 + 23x + 92 is shown. The function models the profits, P, in thousands of dollars for a
elena-14-01-66 [18.8K]

Answer:

6.84 ≤ x ≤ 37.39

Step-by-step explanation:

we have

P(x)=-0.5x^2+23x+92 -----> equation A

we know that

The company wants to keep its profits at or above $225,000,

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Remember that P(x) is in thousands of dollars

Solve the system by graphing

using a graphing tool

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see the attached figure

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