3 years ago

NEED HELP ASAP!!! Please help and I will mark as brainliest!

Mathematics

1 answer:

alex41 [277]3 years ago

3 0

Mnp.............
........

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What is the value of this expression when g = -3.5?

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g = -3,5

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Which of the following is an extraneous solution of sqrt 4x + 41 = x+5

stiv31 [10]

Answer:

x=-8

Step-by-step explanation:

$\sqrt{4x+41}=x+5$

on squaring both sides

$4x+41=(x+5)^2\\\\4x+41=x^2+10x+25\\\\x^2+6x-16=0\\\\x^2+8x-2x-16=0\\\\x(x+8)-2(x+8)=0\\\\(x-2)(x+8)=0$

either x-2=0 or x+8=0

either x=2 or x=-8

Putting x=2 in original equation, we get

$\sqrt{4\times 2+41}=2+5$

7=7 hence, it is not an extraneous solution

Putting x=-8 in original equation

$\sqrt{4\times (-8)+41}=-8+5$

i.e. 3=-3

Hence, x=-8 is an extraneous solution (since it doesn't satisfy the original equation)

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Will and John sell lemonade at a lemonade stand. After an hour, they have taken in $4 for a total of 8 cups of lemonade. What is

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The answer is A - $0.50 per cup

Step-by-step explanation:

If you divide the $4 by the 8 cups you get $0.50

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