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3 years ago

I give free points and brainliest to the first one who says something because I feel nice today.

Mathematics

2 answers:

Eddi Din [679]3 years ago

5 0

Answer: thank you

Step-by-step explanation:

abacnxBZCNxbnxv xzcbvxzc

n200080 [17]3 years ago

3 0

Thank you so much for the free points!

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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:

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

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2 years ago

Write an equation o the line that passes through the given points (-1,7) and (2,-2)

RoseWind [281]

you have to. plot them on a lumber line

7 0

3 years ago

Anyone help me with this?

den301095 [7]

h = 4(x+3y) + 2

4×x = 4x

4×3y= 12y

4x+12y+2

x= $\frac{12y+2}{4} \\\$

tell me if im wrong

ignore the last bit, x=$

4 0

3 years ago

Pls send help my waayyy

soldier1979 [14.2K]

Answer:

Step-by-step explanation:

110 / 22 = 5 inches per picket

equation is y = 5x

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4 years ago

QUESTION 8. An unknown number is added to 8. The sum is

Rudik [331]

Answer:

Step-by-step explanation:

Let the unknown number be x

If an unknown number is added to 8, this is expressed as;

8 + x

If The sum is then divided by 9 to give the answer 10, then;

(8+x)/9 = 10

Cross multiply

8 + x = 9 * 10

8 + x = 90

x = 90 - 8

x = 82

Hence the unknown number is 82

3 0

3 years ago