3 years ago

HELP PLEASEEEEE AND THANK YOUU !!!!!!!!!

Mathematics

1 answer:

MAVERICK [17]3 years ago

5 0

Answer: Number of hours worked

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How many four digit numbers can be formed using the digits 7, 6, 5 and 2 if no

Ksju [112]

Answer:

Step-by-step explanation:

4! = 4*3*2*1 = 24

24 numbers can be formed

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2 years ago

Factorize this expression completely using (a-b)² formula 3a²- 36a + 108

Novosadov [1.4K]

Answer:

$3a^2 - 36a + 108 = (\sqrt{3}a - 6\sqrt{3} )^2$

Step-by-step explanation:

$3a^2 = (\sqrt{3} a)^2\\108 = 9 \times 4 \times 3= 3^2 \times 2^2 \times 3 = (3\times2 \sqrt{3} )^2 = (6\sqrt{3})^2$

$so, a = \sqrt{3} a \ , \ b = 6\sqrt{3} \\\\(a - b)^2 = a^2 -2ab + b^2\\\\-36a = -2ab\\\\-36a = -2 \times \sqrt{3} a \times 6\sqrt{3}$

Therefore ,

$3a^2 - 36a + 108 = (\sqrt{3}a )^2 - 2(\sqrt{3}a \times 6\sqrt{3} ) + (6\sqrt{3} )^2 = (\sqrt{3}a - 6\sqrt{3} )^2$

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3 years ago

Is each line parallel, perpendicular, or neither parallel nor perpendicular to a line whose slope is −6?

ikadub [295]

Line M with slope 6 is neither, line n with slope -6 is parallel because only lines with same slope are parallel, line p with slope 1/6 is neither. and line q with slope -1/6 is perpendicular because only the reciprocal of a slope is perpendicular, so reciprocal of 6= 1/6 reciprocal of -6=-1/6 reciprocal of 2= 1/2

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3 years ago

Read 2 more answers

9/11=?/22 A.12 B.4 C.9 D.18

Yanka [14]

9/11 is equal to 18/22, so then D.

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3 years ago

A robot at a carnival booth randomly tosses a dart at a square target with 8 inch sides and a circle with a 3 inch radius in the

VikaD [51]

Step-by-step explanation:

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