2 years ago

HELP PLEASE!!!!!!!!!

Mathematics

1 answer:

Maurinko [17]2 years ago

3 0

4x = 140
x =140/4
x = 35

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Consider triangle ABC where AB=X+5, BC=X-2, area is 30cm squared. Find X by solving X^2+3X-70=0, and find the perimeter.

klasskru [66]

Answer:

What the hell AC is not given so you can't find the Perimeter

Step-by-step explanation:

x^2+3x-70=0

(x-7)(x+10)=0

x-7=0

x+10=0

x=-10

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Answer:

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3 years ago

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Margaret [11]

Here we have a geometric progression!

Data:
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$a_{8} = ?$ (eighth term)
r (common ratio) = ?
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If: $r = \frac{ a_{2} }{ a_{1} } = \frac{-4}{-1} \to\:\boxed{r= 4}$

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$a_{n} = a_{1} *r^{n-1}$

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$\boxed{\boxed{a_{8} = -16384}}\end{array}}\qquad\quad\checkmark$

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2 years ago