Answer:
C
Step-by-step explanation:
2 units right and 3 units up
Answer:
OK So i didnt know if it was +16.9 so the first answer i got i didn't add the 16.9 and i got z= -7.584 then when i did it with the 16.9 i got z= -21.104
Step-by-step explanation:
It would only be 1 second.
<span><span>h<span>(1)</span></span>=<span><span>−<span>16<span>(<span>1^2</span>)</span></span></span>+<span><span>(640)</span><span>(1)
After simplification, the answer would be h = 624.
If you substituted 2 for t, you would see that h would get smaller. Each time you increased t, h would get smaller.
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Hi,
1) ax²+2bx+c=0 have real roots then (2b)²-4ac>=0 ==> 4b²>=4ac ==> b²>=ac
2) bx²-2√(ac)x+b=0 have real roots then
(-2√(ac))²-4b²>=0==> 4ac>=4b²==> ac>=b²
So b²>=ac>=b²==> b²=ac