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uysha [10]
3 years ago
5

Using the quadratic formula to solve 5x = 6x2 – 3, what are the values of x?

Mathematics
2 answers:
Ostrovityanka [42]3 years ago
6 0

Answer: B is the correct answer

Step-by-step explanation:

soldi70 [24.7K]3 years ago
3 0

Answer:

x_1=1.23\\x_2=-0.40

Step-by-step explanation:

Given a quadratic equation in the form ax^2+bx+c=0, you can use the Quadratic formula to solve it. This is:

x=\frac{-b\±\sqrt{b^2-4ac}}{2a}

Then, you need to subtract 5x from both sides of the equation given:

5x-5x=6x^2-3-5x\\0=6x^2-5x-3

You can identify that:

a=6\\b=-5\\c=-3

Then, substituting values into the Quadratic formula, you get:

 x=\frac{-(-5)\±\sqrt{(-5)^2-4(6)(-3)}}{2(6)}

x_1=1.23\\x_2=-0.40

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Solve for m .<br> 3m = 9
Rzqust [24]

Answer:

3

Step-by-step explanation:

9÷3=3 so the answer is 3 and you can check by doing 3×3=9

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3 years ago
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Marta_Voda [28]

Answer:

slope : 3/2 Y-intercept : 3  ------------> (0,3) (2,6) are the points

Step-by-step explanation:

<u>X | Y</u>

0 | 3

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2 years ago
Cqn someone answer this?​
Norma-Jean [14]

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Step-by-step explanation:

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7 0
3 years ago
Read 2 more answers
Help with matrices please? Any wrong/not applicable answers will be reported and BLOCKED
marin [14]

m x H = \left[\begin{array}{ccc}-25&37.5&-12.5\\\9\end{array}\right]

Step-by-step explanation:

Step 1; Multiply 5 with this matrix  \left[\begin{array}{ccc}-1&2\\4&8\\\end{array}\right] and we get a matrix \left[\begin{array}{ccc}-5&10\\20&40\\\end{array}\right]

Multiply the fraction  \frac{2}{5} with the matrix  \left[\begin{array}{ccc}-1&2\\4&8\\\end{array}\right] and we get \left[\begin{array}{ccc}-\frac{2m}{5} &\frac{4m}{5} \\\frac{8m}{5} &\frac{16m}{5} \\\end{array}\right]

Step2; Now equate corresponding values of the matrices with each other.

-5 = \frac{-2m}{5} and so on. By equating we get the value of m as \frac{25}{2}

Step 3; Add the matrices to get the value of matrix m.

Adding the three matrices on the RHS we get  \left[\begin{array}{ccc}2&9&-9\\\end{array}\right].

Step 4; Adding the matrices on the LHS we get the resulting matrix as H +

\left[\begin{array}{ccc}4&6&-8\\\9\end{array}\right]. Equating the matrices from step 3 and 4 we get the value of H as \left[\begin{array}{ccc}-2&3&-1\\\9\end{array}\right]

Step 5; Now to find the value of m x H we need to multiply the value of \frac{25}{2} with the matrix \left[\begin{array}{ccc}-2&3&-1\\\9\end{array}\right]

Step 6; Multiplying we get the matrix m x H = [ -25  \frac{75}{2}  \frac{-25}{2} ]

8 0
3 years ago
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