Answer:
60
a
30
Step-by-step explanation:
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Isolate the variable by dividing each side by factors that don't contain the variable.
a=- \frac{ x^{2}- \sqrt{( x^{3} + x^{2} b+12x-72(x-2)-2x} }{x-2} ,- \frac{ x^{2}+ \sqrt{( x^{3} + x^{2} b+12x-72(x-2)-2x} }{x-2}
Solve for b by simplifying both sides of the equation then isolating the variable.
b= \frac{12}{x}+ \frac{72}{ x^{2} }-2+2a- \frac{4a}{x}+ \frac{ a^{2} }{x}- \frac{2a^{z} }{ x^{2} }
Hopefully i helped ^.^ Mark brainly if possible. Lol once again i saw the same question so why not answer it again!
<span>f(x) = x^2 + 1
f(1) = 1</span>^2 + 1 = 2
so 2f(1) = 2(2) = 4
<span>g(x) = 3x + 1
f(4) = 3(4) + 1 = 13
</span>3g(4) = 3(13) = 39
<span> 2f(1) + 3g(4) = 4 + 39 = 43
</span>
answer
<span>2. 43</span>
Answer:
3 mph
Step-by-step explanation: