Working together, jack and ming can tar a roof in 6.16 hours. had she done it alone it would have taken ming 11 hours. find how long it would take jack to do it alone

14 hours

Step-by-step explanation:

Jack and Ming can togrther tar a roof in 6.16 hours.

In 1 hour they can tar 1/6.16 of the roof.

Ming alone can tar the roof in 11 hours.

So in 1 hour he can tar 1/11 of the roof.

Let the number of hours taken by Jack to tar the roof = x

Then in 1 hour Jack can tar 1/x of the roof.

=>

=>

=> x=14

Jack will take 14 hours to tar the roof alone.

the answer is the option b

the range is all real numbers

step-by-step explanation:

we know that

the absolute value parent function is equal to

see the attached figure to better understand the problem

so

a. it is v-shaped > is true

b. the range is all real numbers > is not true

because the range is the > [0,∞)

all real numbers greater than or equal to zero

c. it goes through the origin > is true

d. the domain is all real numbers > is true

step-by-step explanation:

70

step-by-step explanation:

2*5=10

4*15=60

60+10=

70