Solve log2(x – 1) = log12(x – 1) by graphing.

By graphing ; only for x =2

Step-by-step explanation:

Solve:

let and

To find the x for which

A graph of these and shows us that the graph intersect.

This implies that there is a single (x, y) value that satisfies both equations.

i.,e (2, 0)

Therefore,   only when x =2

You can see the graph as shown below:

Answer: d. 39 cmin the diagram, the approximate length of the minor arc de is 39 centimetres.step-by-step explanation: the formula for the length of an arc in a circle is as displayed below.let the length of the minor arc de = xx = 2( pi )r × angle of sector / 360°from this, we will substitute the values given from the problem into the formula to obtain the length of the minor arc de.x = 2( pi )r × angle of sector / 360°r = radius = 25cmpi as an approximate value = 3.14angle of sector = 120°x = 2( 3.14 )( 25 ) × 120° / 360°x = 157 × 1 / 4x = 39.25x = 39 ( rounded to the nearest whole number as an approximate value )