cristabean87
17.12.2020 •
Mathematics
I need help with this asap
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Ответ:
F(x)=X-11
F(-3)= -3-11
F(-3)=-14
F(x)=X-11
F(-2)=-2-11
f(-2)=-13
F(x)=X-11
F(4)= 4-11
f(4)=-7
F(x)=-7x+1
F(-3)=-7(-3)+1
F(-3)=-21+1
F(-3)=22,
F(x)=-7x+1
F(-2)=-7(-2)+1
F(-2)= 14+1
f(-2)=15,
F(x)=-7x+1
F(4)=-7(4)+1
f(4)=-28+1 =-27
F(x)=X+8
F(-3)=5, f(-2)= 6 , f(4)=12
Ответ:
The time required by both persons to complete the work T = 1.458 hours
Step-by-step explanation:
Given data
Time required by Joe to clear a lot
= 2.5 hours
Time required by his partner to clear a lot
= 2.5 hours
Time required by both persons to complete the work by working together
T = 1.458 hours
Therefore the time required by both persons to complete the work T = 1.458 hours