4 years ago

Heres 2 more in need for help!..

1 answer:

6 0

The triangles are congruent because of ASA

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creativ13 [48]

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Step-by-step explanation:

Negatives will always be less than zero

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dybincka [34]

Answer:

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anzhelika [568]

Answer: b

Step-by-step explanation: 600 is the total so, just do 10x and 12

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3 years ago

TEA [102]

Answer:

$f$ is sometimes positive and sometimes negative.

Step-by-step explanation:

$f(x)=(x-3)(x+2)(x+4)(x+4)(x-1)(2x-9)$

Take $x=-1\in(-2,\frac{9}{2})\ as-2$

$f(-1)=(-1-3)(-1+2)(-1+4)(-1-1)(-2-9)\\\\=(-4)(1)(3)(-2)(-11)\\\\=-264\\\\f(-1)$

Take $x=2\in(-2,\frac{9}{2})\ as\ -2$

$f(2)=(2,-3)(2+2)(2+4)(2-1)(2\times2-9)\\\\=(-1)(4)(6)(1)(-5)\\\\=120\\\\f(2)>0$

Hence $f(x)$ for $x=-1$ and $f(x)>0$ for $x=2$

So $f$ is sometimes positive and sometimes negative in the interval.

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3 years ago

grin007 [14]

16.8. Perimeter of a triangle is side a+ side b+ side c.

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