6. A prism has volume 100 cm' and length 8 cm. If the cross-section is an equilateral triangle, find the length of a side of the triangle.

You and a friend race across a field to a fence and back. your friend has a 50-meter head start. the equations shown represent you and your friend's distances dd (in meters) from the fence tt seconds after the race begins. find the time at which you catch up to your friend. you: d=∣−5t+100∣d=∣−5t+100∣ your friend: d=∣−313t+50∣∣

Which of the following are accepted without proof in a logical system? check all that apply.

[10 points, algebra 2]according to my answer key the restrictions are -1 and 4. but why not positive 1?