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oksano4ka [1.4K]
2 years ago
12

Help me find x it’s really hard

Mathematics
1 answer:
Vilka [71]2 years ago
3 0

Answer:

x = 140

Step-by-step explanation:

180 - 65 - 75= 40

180 - 40 = x

140 = x

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to solve for the inverse of a function you do 4 steps:
1. subsitute f(x) with y
2. switch y and x places
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so we have
f(x)=\sqrt[3]{x+2}
subsitute f(x) with y
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subsitute y with f⁻¹(x)
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So hmm check the picture below

the height or altitude is CD
and the base is AB

how long are those? well \bf \textit{distance between 2 points}\\ \quad \\
\begin{array}{lllll}
&x_1&y_1&x_2&y_2\\
%  (a,b)
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D&({{ 4}}\quad ,&{{ 2}})
\end{array}\qquad 
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d = \sqrt{({{ x_2}}-{{ x_1}})^2 + ({{ y_2}}-{{ y_1}})^2}
\\\\\\
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Step-by-step explanation:

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