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3 years ago

If f(x)=x-6/x, g(x)=x+4 and h(x)= 3x-2 (hfg)(x)

Mathematics

2 answers:

erastova [34]3 years ago

7 0

Answer:

Correct answer on ed is C.

Step-by-step explanation:

Just did the exam and it was correct.

Lelechka [254]3 years ago

5 0

Answer:

-14 + x\4 + x

Step-by-step explanation:

Start by plugging the g(x) function into the f(x) for every "x" you see, then take THAT answer and plug into the h(x) function for that "x" you see. You will arrive at the above answer.

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I am having trouble with question 7 onwards to q10 anyone mind helping/teach me?

zaharov [31]

~7)~
$(3×4×5)
=1.585 + 2 + 2.322
=5.907$
~8)
$(3÷2÷5)
=1.585 - 1 - 2.322
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=0.356+2(0.565)
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x=2$
10) $x/(2x+3)=1/9
9x=2x+3
x=3/7$

Hope this helps

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Ann [662]

The answer is 12 carrots:)

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3 years ago

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lisabon 2012 [21]

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tensa zangetsu [6.8K]

For the equation $5^{3x+1}=4^{x-5}$ take the $\log$ from both sides:

$\log 5^{3x+1}=\log 4^{x-5},\\ \\(3x+1)\log 5=(x-5)\log 4.$

Find x:

$3x\log 5+\log 5=x\log 4-5\log 4,\\ \\3x\log 5-x\log 4=-5\log 4-\log 5,\\ \\x(3\log 5-\log 4)=-5\log 4-\log 5,\\ \\x=\dfrac{-5\log 4-\log 5}{3\log 5-\log 4}=\dfrac{5\log 4+\log 5}{\log 4-3\log 5}.$

Answer: correct choice is D

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3 years ago

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If f(x)=x-6/x, g(x)=x+4 and h(x)= 3x-2 (h*f*g)(x)

If f(x)=x-6/x, g(x)=x+4 and h(x)= 3x-2 (hfg)(x)