A+b=-7
ab=-15
a=-7-b
b(-7-b)=-15
a=-7-b
-b^2-7b+15=0
a=-7-b
b^2+7b-15=0
a=-7-b
b=(-7±sqrt(109))/2
1)
a=-7-b
b=(-7+sqrt(109))/2
b=(-7+sqrt(109))/2
a=-7+3.5-sqrt(109)/2
b=(-7+sqrt(109))/2
a=-3.5-sqrt(109)/2
2)
a=-7-b
b=(-7-sqrt(109))/2
b=(-7-sqrt(109))/2
a=-7+3.5+sqrt(109)/2
b=(-7-sqrt(109))/2
a=-3.5+sqrt(109)/2
Answer:
Tbe delivery person can only bring 15 boxes of books at one time
Step-by-step explanation:
160+(15×40)= 760
Answer:
160 cubic inches
Step-by-step explanation:
Answer:
1260
Step-by-step explanation:
1200 times 1.05 to get 5% interest added
Answer:
31, 27
Step-by-step explanation:
