The product of the roots of 8x^2 - 2x = 1 is:
-1/8
1/8
1/4

FIRST OPTION.

Step-by-step explanation:

You can find the roots as following:

-Make the equation equal to zero:

- Apply the quadratic formula as following:

Where:

a=8

b=-2

c=-1

Therefore, you obtain:

The product is the result of multiply both roots:

Option A. -1/8 is the correct option.

Step-by-step explanation:

We have to get the product of the roots of the given equation.

Since the equation is 8x²- 2x = 1

8x² - 2x - 1 = 0

8x² - 4x + 2x -1 = 0

4x(2x - 1) + 1(2x -1) = 0

(4x + 1)(2x - 1) = 0

Here the equation has two roots

4x +1 = 0

4x = -1

x = -1/4

and 2x - 1 = 0

2x = 1

x = 1/2

Therefore product of the given roots will be

= (-1/4)×(1/2) = -1/8

Option A. -1/8 is the answer.

c.   x=2.4cm

step-by-step explanation:

similar triangles are triangles which have the same shape but not the same size. this means their angle measures are equal but their side lengths are not instead they are proportional. to solve, we will set up a proportion and solve.

a proportion is two equal ratios set equal to each other. we form the ratios by finding corresponding sides (sides which match to each other on both triangles by their position). out ratios will be one side of the small triangle over the corresponding side on the big triangle as shown below:

.

to solve the proportion, we'll cross multiply by multiplying numerator with denominator across the equal sign.

what is the question?

step-by-step explanation: