3 years ago

Which expression is equivalent to 15x – 2(3x + 6)?

1 answer:

Mkey [24]3 years ago

7 0

Answer: 3(3x−4) is the answer

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Paraphin [41]

Answer:

Step-by-step explanation:

For a quadratic equation ax² +bx +c= 0, the quadratic formula is as below:

$\boxed{x = \frac{ - b± \sqrt{ {b}^{2} - 4ac } }{2a} }$

x² -12x +7= 0

$x = \frac{ - ( - 12)± \sqrt{( - 12) {}^{2} - 4(1)(7) } }{2(1)}$

$x = \frac{12± \sqrt{144 - 28} }{2}$

$x = \frac{12± \sqrt{116} }{2}$

$x = \frac{12± \sqrt{4(29)} }{2}$

$x = \frac{12±( \sqrt{4})( \sqrt{29} )}{2}$

$x = \frac{12±2 \sqrt{29} }{2}$

$x = 6± \sqrt{29}$

$∴x = 6 + \sqrt{29} \: \: \: or \: \: \:x = 6 - \sqrt{29}$

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3 years ago

diamong [38]

The answer is D:) hope this helps!:)

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Oliga [24]

Least number is 120 and 12 packs of hot dogs and 10 packs of buns

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alexdok [17]

64 degrees

90 degrees minus 26 degrees

90-26=64

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3 years ago

Kruka [31]

Answer:

D. 80mins

Step-by-step explanation:

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3 years ago