What is the value of x?

Enter your answer, as a decimal, in the box.

x=

Step-by-step explanation:

Notice that CD bisects Angle C.

Then by the Angle Bisector Theorem, we can write the following proportion:

Now, we can solve for x. Cross multiply:

Multiply:

Divide both sides by 6:

Hence, the vale of x is 3.5.  

4.2

Step-by-step explanation:

b. 6

step-by-step explanation:

we are given the table representing an exponential function.

we can see from the table that, as x is increasing, the value of y is increasing in the power of 6.

i.e. the following relation is obtained,

x = 1, y = 6

x = 2, y = 36 =

x = 3, y = 216 =

x = 4, y = 1296 =

x = 5, y = 7776 =

so, the geometric series obtained is .

thus, the common ratio is given by = = 6.

hence, the common ratio is 6.