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2 years ago

5

Please help question in the picture

1 answer:

tigry1 [53]2 years ago

8 0

There really isn’t a possible answer since there is not enough information given. Not from what I have learned so far at least, but using common sense, and the process of elimination I would say 30

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What are the zeros of the function f(x) = x^4 - x² - 2?

vaieri [72.5K]

Answer:

$x= i\\\\ x = -i \\\\x=\sqrt 2\\\\x = -\sqrt 2$

Step-by-step explanation:

$~~~~~~x^4 -x^2 -2=0\\\\\implies x^2 \cdot x^2-2x^2 +x^2 -2 = 0\\\\\implies x^2(x^2 -2) +(x^2 -2) =0\\\\\implies (x^2 +1)(x^2 -2) = 0\\\\ \implies x^2 +1=0~~~~~~~~\text{or}~~~~~~~~~x^2 -2 = 0\\\\ \implies x = \pm\sqrt{-1}~~~~~~~\text{or}~~~~~~~~~~ x = \pm\sqrt 2\\\\\implies x= \pm i~~~~~~~~~~~~~\text{or}~~~~~~~~~ x= \pm\sqrt 2$

7 0

1 year ago

Marco states that 7.696696669…… is a rational number because it is a repeating decimal. Is he correct? Justify your answer.

Allisa [31]

Answer:

no because at the end it is 669 not 696 so it is not repeating decimal

3 0

3 years ago

Read 2 more answers

Express a ratio in the form of 1:n<br> 5:45

Radda [10]

Answer:

1:9

Step-by-step explanation:

you divide both sides by the right number

for example the right number in this one is 5 so u divide 5 by it self and 5 by 45 to get your answer

6 0

1 year ago

If 1 ft = 1.894 x 10 -4miles, convert 20.0 inches to miles

Yakvenalex [24]

Answer:

3.1567 * 10^-4 miles

Step-by-step explanation:

1 ft = 1.894 * 10^-4 miles , so

1 inch = 1.894 * 10^-4 / 12 miles

= 0.15783 * 10^-4

= 1.5783* 10^-5 miles ( in scientific form).

Multiplying this by 20 we get

31.567 * 10^-5

= 3.1567 * 10^-4 miles.

3 0

2 years ago

What is 28 divided by 3.2 ?? Please include steps :(

expeople1 [14]

thats the answer just look at the picture :)

for the work

8 0

3 years ago