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NikAS [45]
2 years ago
9

What is one root of this equation? 2x^-4x+9=0

Mathematics
1 answer:
Nutka1998 [239]2 years ago
3 0

9514 1404 393

Answer:

  1 +i√3.5

Step-by-step explanation:

In vertex form, the equation is ...

  2(x² -2x +1) +7 = 0

  2(x -1)² +7 = 0

Then the solutions are ...

  (x -1)² = -7/2

  x = 1 ±i√3.5

One solution is 1+i√3.5.

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$2.45

Step-by-step explanation:

First divide the cost by number of items. you shall get $0.49

Now multiply the cost of 1 candy bar into 5 and you shall get $2.45.

6 0
2 years ago
You buy a $75 ipod and get a 10% discount. What is the sale price?​
Serhud [2]

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4 0
2 years ago
What is the algebraic express:<br><br>8 divided by the cube of y
allsm [11]
8:y^3=\frac{8}{y^3}
6 0
2 years ago
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I will mark the brainliest <br> Please answer thank youu!!!
antiseptic1488 [7]

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Step-by-step explanation:

The polygon has 5 sides but all the sides are not equal

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7 0
3 years ago
Solve for x<br><br>7x/2+5=8<br><br>o x=6/7<br><br>o x=26/7<br><br>o x=21/2<br><br>o x=91/2​
pshichka [43]

Answer:

x = 6/7

Step-by-step explanation:

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2/7 * 7/2x = 3*2/7

x = 6/7

7 0
2 years ago
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