3 years ago

Solve the equation for 5x^2-4x=6

Mathematics

1 answer:

Andrei [34K]3 years ago

8 0

Answer:

x = (4 + 2√34)/10, x = (4 - 2√34)/10

Step-by-step explanation:

5x² - 4x = 6

Subtract: 5x² - 4x - 6 = 0

Quadratic formula: x = (4 ± √(16 - 4*5*(-6)))/10

Multiply: x = (4 ± √(16 + 120))/10

Simplify: x = (4 ± 2√34)/10

You might be interested in

A phone carrier charges an extra fee if a customer uses more than 700 minutes each month. Karina has already used 200 minutes th

garik1379 [7]

Answer:third one

Step-by-step explanation:

3 0

3 years ago

The length of a rectangle is 5t+6 and its height is t^6 , where t is time in seconds and the dimensions are in inches. Find the

Nataly_w [17]

$\bf \textit{area of a rectangle}\\\\
A=l\cdot w\qquad 
\begin{cases}
l=length\\
w=width\\
-----\\
l=5t+6\\
w=t^6
\end{cases}\implies A(t)=(5t+6)t^6
\\\\\\
A(t)=5t^7+6t^6\implies \cfrac{dA}{dt}=35t^6+36t^5$

7 0

3 years ago

If cos x= sin(20 + x)° and 0° < x < 90°, the value of xis

ruslelena [56]

Answer:

draw a right angle triangle

Step-by-step explanation:

Let one of the angles be A

cos A = sin (90-A)

90 - x - 20 = x

2x = 70

x = 35 degrees

4 0

3 years ago

Can check if correct p.ease??????

BARSIC [14]

You're correct dear. Good Job.

7 0

3 years ago

Approximate the real zeros of f(x) = x2 + 3x + 1 to the nearest tenth

pshichka [43]

Approximate the real zeros of f(x) = x2 + 3x + 1 to the nearest tenth

<u>C. 2.6,-0.4</u>

<u />

5 0

3 years ago

Read 2 more answers