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3 years ago

What is the answer for -2(-3.4)= ?

Mathematics

2 answers:

Ronch [10]3 years ago

4 0

Answer:

6.8

Step-by-step explanation:

negative 2 times negative 3 is -6.

negative 2 times negative 0.4 is -0.8.

add them together :)

gtnhenbr [62]3 years ago

4 0

Answer:

6.8

Step-by-step explanation:

hope this helps

if it doesnt lmk plss

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2 years ago

Evaluate x^2 − 4x + 5, when x = − 3

Gnom [1K]

Answer:

$\huge\boxed{26}$

Step-by-step explanation:

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3 years ago

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Anyone know the answer??

Serggg [28]

Answer:

the second option

Step-by-step explanation:

in ax²+bx+c = 0:

$x = \frac{-b+-\sqrt{b^2-4ac} }{2a}$

subtract both sides by 6 to get to this form, as the right side will be left with 0

6x² + 8x - 6 = 0

here, the coefficient for x² (a) is 6, the coefficient for x (b) is 8, and the remaining number added on (c) is -6

plugging our numbers into the formula, we get

$x = \frac{-8+-\sqrt{(-8)^2-4(6)(-6)} }{2(6)}\\= \frac{-8+-\sqrt{64-(-144)} }{12} \\= \frac{-8+-\sqrt{208} }{12} \\ = \frac{-8+\sqrt{208} }{12} or \frac{-8-\sqrt{208} }{12}\\= 0.53518375848 or -1.86851709182\\= approximately -1.87, 0.54$

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1 year ago