Answer:
20
Step-by-step explanation:
360÷18=20
thus ,the polygon have 20 sides
Answer:
see explanation
Step-by-step explanation:
The value of the discriminant informs about the nature of the roots of a quadratic function.
The discriminant Δ = b² - 4ac
• If b² - 4ac > 0, then roots are real and distinct
• If b² - 4ac = 0, then roots are real and equal
• If b² - 4ac < 0, then the roots are not real
Hence for b² - 4ac = - 8, then roots are not real
Answer: 54.75
Step-by-step explanation: You will lose an average 3.5 degrees Fahrenheit for every 1000 feet of elevation, so you would LOSE 19.25 farenheit off the 74 fahrenheit equalling 54.75.
First time doing this kind or equation, but hope this helps!
Answer:
Step-by-step explanation:
{−2w + 2l = 4
{40 = 2w + 2l
__________
[Plug this back into both equations above to get the width of 9 metres];
I am joyous to assist you anytime.