3 years ago

A triangle can be formed with sides length s 2 in, 3 in and 6 in true or false

Mathematics

1 answer:

NeX [460]3 years ago

7 0

False in a triangle 2 sides are the same and one is different

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Why do turtles not have shells equal to pie when their body is completely equal on all sides

Rus_ich [418]

Answer:

because they do

Step-by-step explanation:

7 0

3 years ago

Write the explicit formula for the geometric sequence.<br><br> a1 = -5 a2 = 20 a3 = -80

Anni [7]

$a_1 = -5;\ a_2 = 20;\ a_3 = -80 \\\\a_2:a_1=r\ and\ a_3:a_2=r\\\\r=20:(-5)=-4\ check\ r=-80:20=-4\\\\a_n=a_1r^{n-1}\to a_n=-5\cdot(-4)^{n-1}=-5\cdot(-4)^{-1}\cdot(-4)^n\\\\=-5\cdot\left(-\dfrac{1}{4}\right)\cdot(-4)^n=\dfrac{5}{4}\cdot(-4)^n\\\\Answer:\boxed{a_n=-5\cdot(-4)^{n-1}\ other\ a_n=\frac{5}{4}\cdot(-4)^n}$