Suppose you hire an electrician to install several electrical outlets in your home. The electrician charges $68.00 for materials plus $40.00 per hour for labor.
How much will the electrician charge you if the job take 2 hours?

$148.00

Step-by-step explanation:

y is the total amount of money the electrician will charge.

x is the hours they work

$68 is the materials cost

y = $68 + 40(x)

It should all equal y since y is the total cost for the electricians service. You plug in 2 in place of x since it took them 2 hours.

y = 68 + 40(2)

y = 68 + 80

y = 148

anser is a

step-by-step explanation:

negitive slope

the correct option is 2.

step-by-step explanation:

according to the given information triangle abc is a right angle triangle with right angle at a. segment ab is 5 and segment ac is 7. point d is on segment bc and angles adb and adc are right angles.

it is given that triangles abd, cad, and cba are similar.

two triangles are similar if their corresponding sides are proportional.

in triangle cba, using pythagoras theorem

                      )

triangle abd and cba are similar,

                            (2)

triangle cad and cba are similar,

                      )

using (1), (2) and (3), we get

hence proved.

therefore option 2 is correct.