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2 years ago

Seriously need help with this question or I will fail my senior year

Mathematics

2 answers:

Alex73 [517]2 years ago

8 0

Here's what I got

B. √5

Ac. 100

2x²+25x+50

a=2 b=√5 c=50

ac=2•50=100

B=√5

ac=100

nlexa [21]2 years ago

5 0

Answer:

you cheater

Step-by-step explanation:

Tring to cheat because you don't feel like doing it. Hopefully you fail so you can learn your lesson

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$S_{100}=\dfrac{(2)(1)+(100-1)(1.5)}{2}\cdot100=\dfrac{2+(99)(1.5)}{1}\cdot50\\\\=(2+148.5)\cdot50=150.5\cdot50=7,525\\\\\boxed{S_{100}=7,525}\\\\Answer:\\the\ common\ difference:\ d=1.5\\the\ fifth\ term:\ a_5=7\\the\ sum\ of\ first\ 100\ terms:\ S_{100}=7,525$

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