How do i find the length of AC?

Mathematics

1 answer:

Lady_Fox [76]2 years ago

5 0

Answer:

cos 23 = x/7.8

Step-by-step explanation:

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Solve for this equation<br> z^2-12z=-13

ASHA 777 [7]

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Step-by-step explanation:

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bonufazy [111]

The unsimplified answer is 15/50. The answer simplified is 3/10.
equation/how to solve=
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<img src="https://tex.z-dn.net/?f=%284%20%2B%206i%29%20%7B%7D%5E%7B2%7D%20" id="TexFormula1" title="(4 + 6i) {}^{2} " alt="(4 +

34kurt

Answer:

$36i^{2}+48i+16$

Step-by-step explanation:

$(4+6i)^{2}$ is essentially $(4+6i)(4+6i)$ (you are squaring $(4+6i)$ , so multiplying it by itself), so to simplify, you would need to distribute.

A good way to go about this is using the F.O.I.L. method, multiplying the First numbers in the parentheses, then the Outers, then Inners, and finally, Lasts.

$(4+6i)(4+6i)$ >> $(4+6i)(4+6i)$ >> $(4+6i)(4+6i)$ >> $(4+6i)(4+6i)$