3 years ago

What is the factored form of x^2+1 using imaginary numbers

1 answer:

6 0

Recall that i² = -1, also recall your difference of squares,

$\bf x^2+1\implies x^2-(-1)\implies x^2-(i^2)\implies x^2-i^2\implies (x-i)(x+i)$

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First answer gets a Thanks

fiasKO [112]

The appropriate choice is ...
B: y = 3.5x

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3 years ago

In the triangle below find X round to the nearest 10th

denis-greek [22]

According to the trigonometric relations in a right triangle, we have:

$\begin{gathered} \cos x=\frac{9}{17} \\ x=\cos^{-1}\frac{9}{17} \\ x\approx58.0\degree \end{gathered}$

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1 year ago

What is 70% of 0.6kg? <br><br> (i have to have an answer as a decimal and show my work)

patriot [66]

Answer:

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3 years ago

There are 10 coins in a jar. some are dimes and the rest are nickels. the coins are worth a total of 70 cents. which system of e

Elenna [48]

Eg. d stands for the number of dimes, n stands for the number of nickels
a dime worth 10 cents, 1 nickel worth 5 cents

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The equation for "The coins are worth a total of 70 cents" is
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4 years ago

What is the probability of rolling a number less than or equal to 8 with the sum of two dice, given that at least one of the dic

sergey [27]

Outcomes that meet your requirement are
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There are 11 outcomes in which one die shows a 6, so your probability is ...
B. 4/11

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4 years ago