Answer:
x^2/3 x7/2
=1/6 x^9
Step-by-step explanation:
try using mathpapa
Make equal to 0
minus 12from both sides
x^2+10x+13=0
we can't factor so use quadratic formula
x=

x=

x=

x=

x=

x=

x=

or

aprox
x=-1.5359 or -8.4641
Answer:
1.3°F * 10 = 13°F
10.2°F
Step-by-step explanation:
Given that:
Temperature on the ground = - 2.8°F
Change in temperature per 1000 ft rise = 1.3°F
Change in temperature after the plane ascends 10000 ft
Change in temperature per 1000ft rise * (10000/1000)
1.3°F * 10 = 13°F
B.) Temperature at 10,000 feets
Temperature on ground + change in temperature at 10,000ft
-2.8°F + 13°F
= 10.2°F
= 7/8 − 1/5
= ((7 × 5) − (1 × 8)) / (8 × 5)
= (35 - 8) / 40
= 27/40
SO, 27/40 minutes are NOT spend on instructions.
Hope I was able to help! :)