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kaheart [24]
3 years ago
8

Given 2x² = -8, x is .

Mathematics
1 answer:
sertanlavr [38]3 years ago
8 0

Answer:

<em>The values of x are : 2i and -2i</em>

Step-by-step explanation:

Given equation is:   2x^2= -8

First, we will divide both sides by 2 for getting rid of that 2 from the left side. So........

\frac{2x^2}{2}= \frac{-8}{2} \\ \\ x^2=-4

Now, we need to take square root on both sides. So, we will get......

\sqrt{x^2}= \pm \sqrt{-4} \\ \\ x=\pm \sqrt{4(-1)} \\ \\ x=\pm 2\sqrt{-1}= \pm 2i

<em>(Replacing \sqrt{-1} as  i )</em>

So, the solutions are: x= 2i, -2i

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3 years ago
Can someone help asap!! ​
Alborosie

7/9÷4/9=7/4

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Hence, a=1, b=3, c=4.

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3 years ago
BRAINLIEST IF CORRECT PLEASE DONT ANSWER IF YOU DONT KNOW OR REPORTED 50 POINTS I NEED MY GRADES TO BE BETTER
weqwewe [10]

Answer:

B.166 11/12

Step-by-step explanation:

To handle this problem better, we can separate the fraction and integer portions to look at the whole situation better.

First, let's only look at the integers. Anthony flew up his drone 125 feet (translating to +125), allowed it to drop 14 feet (translating to -14), and then flew it up for 55 feet (translating to +55). Hence, only considering the integers, the total change in the drone's position would be (125 - 14 + 55) feet, which equates to 166 feet.

You'd probably have already noticed this answer is quite close to B. 166 11/12 feet, but let's keep on going for now.

On the fraction part, he flew his drone up 1/2 feet, allowed it to drop 1/3 feet, and then flew it up for 3/4 feet, translating to (1/2 - 1/3 + 3/4) feet.

Hence, after making all fractions share the same denominator, that same equation would change to (6/12 - 4/12 + 9/12) feet, which equals to 11/12 feet.

Finally, the total magnitude of the drone's position would be (166 + 11/12) feet, which is equal to B.166 11/12 feet.

Hope this helped!

6 0
3 years ago
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Which of the following graphs could be the graph of the inverse of f(a) =3"?
emmasim [6.3K]

Answer:b

Step-by-step explanation: cause my name Komi

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3 years ago
The local hamburger restaurant is famous for how quickly they can assemble a burger. The restaurant advertises that its constant
melisa1 [442]

The gievn equation is ,

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put h = 2 in equation (1).

\begin{gathered} t=11.3\text{ (2)} \\ t=22.6 \end{gathered}

blank A assembles 2 hamburges in 22.6 seconds.

put h = 3 in equation (1)

\begin{gathered} t=11.3(3) \\ t=33.9 \end{gathered}

blank B assembles 3 hamburgers in 33.9 seconds.

put h = 5 in equation (1)

\begin{gathered} t=11.3(5) \\ t=56.5 \end{gathered}

blank C assembles 5 hamburgers in 56.5 seconds.

put h = 8 in equation (1)

\begin{gathered} t=11.3(8) \\ t=90.4 \end{gathered}

blank D assembles 8 hamburgers in 90.4 seconds.

3 0
1 year ago
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