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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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\bold{ANSWER:}
$8725

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4 0
2 years ago
If 5a=-4b+5 and 3a=-2b+3, what is 6b?
Misha Larkins [42]
There are two equations and two variables. You can solve for each variable using either the elimination method or the substitution method. Here, I believe the elimination method would be best:
5a = -4b + 5
3a = -2b + 3
You can multiply the second equation by two, so the 4b and -4b in both equations will cancel each other out when you add them. So:
5a = -4b +5
6a = 4b +6
Add both equations together.
11a = 11
a = 1
Plug in the a value into any of the previous equations:
5(1) = -4b + 5
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b = 0
So, since we know that b = 0, 6b is also 0.
6 0
3 years ago
In the equation Y = 8x+ 5 the name for y are​
VLD [36.1K]

Answer:

The equation of any straight line, called a linear equation, can be written as: y = mx + b, where m is the slope of the line and b is the y-intercept. The y-intercept of this line is the value of y at the point where the line crosses the y axis.

Step-by-step explanation:

4 0
2 years ago
<img src="https://tex.z-dn.net/?f=x%20-%206%3D%20-55" id="TexFormula1" title="x - 6= -55" alt="x - 6= -55" align="absmiddle" cla
Helga [31]

Answer:

<h2>x = -49</h2>

Step-by-step explanation:

x - 6 = -55      <em>add 6 to both sides</em>

x - 6 + 6 = -55 + 6

x = -49

5 0
3 years ago
Read 2 more answers
Please help thank you very much
-BARSIC- [3]
Hello!

The answer is 34°

Hope this helps!
7 0
3 years ago
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