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3 years ago

Distribute and simplify these radicals. 12 x(-1+ √5)

Mathematics

2 answers:

lions [1.4K]3 years ago

7 0

Answer is B. -2√3+2√15

Serga [27]3 years ago

5 0

Hello there!

Here is the answer worked out for you!
12x[-1+sqrt(5)]
-12x+12xsqrt(5)

Remember that you can only add like terms so you can't add -12x to 12xsqrt(5). The radical makes it an unlike term.

I hope this helped and best wishes!

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3 years ago

Two perpendicular lines intersect on the -axis. The equation of one line is y- 4x-6=0. Determine the equation of the other line.

Kay [80]

Answer:

y = $-\frac{1}{4}$ x + 6 or y = $-\frac{1}{4}$ x - 0.375

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For 2 lines to be perpendicular, their slopes must be negative reciprocals. In order to find the perpendicular of y - 4x - 6 = 0:

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Since I don't know if you meant that they intercept on the x or y axis I will do both.

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y-6= $-\frac{1}{4}$ (x-0)

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