3 years ago

Does anyone know the answer to this?

1 answer:

3 0

I only found b I’m still working on a anyways.

Answer:
339

Explain: 339+39= 378 you can divide 378 by 9 which is 42, 42 subtracted by 3 is 39

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ruslelena [56]

1 quart I think tbh idk but i think .

5 0

3 years ago

Nataliya [291]

The answer would be A. 9cm

5 0

2 years ago

marta [7]

Answer:

8cm and 9cm

Step-by-step explanation:

because for the triangle to work you need the other two other sides when added together needs to be greater then 13

6 0

2 years ago

aivan3 [116]

<h3>Therefore either $x = \frac{-3+\sqrt{17}}{2}$ or, $x = \frac{-3-\sqrt{17}}{2}$ </h3>

Step-by-step explanation:

$3x^2 +9x -6=0$ $x = \frac{-b\pm\sqrt{b^2- 4ac} }{2a}$

$\Leftrightarrow x = \frac{-9\pm\sqrt{9^2- 4.3(-6)} }{2.3}$ here a = 3 ,b = 9 and c= -6

$\Leftrightarrow x = \frac{-9\pm\sqrt{153} }{6}$

$\Leftrightarrow x = \frac{3(-3\pm\sqrt{17}) }{6}$

$\Leftrightarrow x = \frac{-3\pm\sqrt{17}}{2}$

Therefore either $x = \frac{-3+\sqrt{17}}{2}$ or, $x = \frac{-3-\sqrt{17}}{2}$

4 0

3 years ago

weeeeeb [17]

Answer:

40 degrees

Step-by-step explanation:

Basically the exterior angle plus x =180, so 4x-20+x=180. x=40.

7 0

3 years ago