What is the value of x?

enter your answer in the box.

x =

  x = 9

Step-by-step explanation:

The bottom segment on the left (72 cm) is 8 times the top segment (9 cm). The dividing line is parallel to the base, so we expect the same ratio on the right. That makes ...

  3x -20 = 56/8 = 7

  3x = 27 . . . . . . . . add 20

  x = 9 . . . . . . . . . . . divide by 3

the answer is:

the correct option:

b.

to solve the problem, we need to remember how to operate to simplify exponential expressions using the logarithms.

we are given the equation:

then, using placing logarith with base 7 on both sides of the equation, we have:

so, rounding the obtained result to two decimal places (nearest hundreth), we have:

hence, we have that the correct option:

b.

have a nice day!

answer: solve 5\cdot 2^x=2405⋅2  

x

=2405, dot, 2, start superscript, x, end superscript, equals, 240.

solution

to solve for xxx, we must first isolate the exponential part. to do this, divide both sides by 555 as shown below. we do not multiply the 555 and the 222 as this goes against the order of operations!

\begin{aligned} 5\cdot 2^x& =240 2^x& =48 \\ \end{aligned}  

5⋅2  

x

2  

x

​    

=240

=48

​

step-by-step explanation: