2nd equation:
8 x-y=10 ⇒ y= 8 x-10
We will switch that in 1st equation:
8 x-10=x²+12 x+30, or:
x² + 4 x +40 = 0, a=1,B=4, c=40
Discriminant : D= b² - 4 ac= 16 - 160 = -144 and because it is negative there are no real solutions.
Answer: D)
the slope of the line is y = -1/2x -2
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This may help https://www.ck12.org/geometry/Reflection-Symmetry/lesson/Reflection-Symmetry-GEOM-HNRS/ If not wait for somebody else. I hope it does help, though. Good luck! :)
Answer:
5.5 hours
Step-by-step explanation:
Answer:


Step-by-step explanation:
For this mission, each astronaut will bring
- x pounds of food; and
- y pounds of gear.
Weight of Supplies of One Astronaut on the earth = (x+y) pounds
If the total number of astronauts going on the mission= a
- Total Weight on the earth of the supplies of all the Astronaut

On the moon, things weigh
of what they weigh on Earth.
- Total Weight of the supplies of all the Astronaut on the moon

Therefore,the inequality which correctly compares the weight of the supplies on the moon to the weight of the supplies on Earth is:
