Simplify the following expression.

Mathematics

1 answer:

Sloan [31]3 years ago

7 0

Answer: $3x^{2}+12x$

Step-by-step explanation:

1. To solve simplify the expression given in the problem, you must apply a property of exponents called Quotient of powers, which states that when you divide two powers that have the same base, you must subtract the exponents.

2. Keeping this property on mind, you can rewrite the expression as following and simplify:

$\frac{-12x^{3}}{-4x}-\frac{48x^{2}}{-4x}=3x^{2}+12x$

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Circle C has intersecting chords AB and DE as shown.

victus00 [196]

Answer:

x = 30

Step-by-step explanation:

The measure of the chord- chord angle is one half the the sum of the arcs intercepted by the angle and its vertical angle, that is

$\frac{1}{2}$ (2x + 10 + x + 20) = 60

Multiply both sides by 2 to clear the fraction

2x + 10 + x + 20 = 120, that is

3x + 30 = 120 ( subtract 30 from both sides )

3x = 90 ( divide both sides by 3 )

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3 years ago

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erica [24]

Step-by-step explanation:

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