2 years ago

Which expressions are equivalent to 4 (3e + 2) + 9(e + 4) +1?

Mathematics

1 answer:

erica [24]2 years ago

4 0

Answer: i dont know

Step-by-step explanation:

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kakasveta [241]

Answer:

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Step-by-step explanation:

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2 years ago

Seventeen added to the product of six and a number equals 113

serg [7]

Answer:

Step-by-step explanation:

113-17= 96

96/6= 16

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3 years ago

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the length of a rectangle is 5 meters less than 3 times the width. the perimeter of the rectangle is 14 meters. find the length

morpeh [17]

Answer:

(4+x) + x = 18; 2x=14; x=7; width = 7, length = 11

Step-by-step explanation:

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2 years ago

Sin^2x/cos^2 + sinxcscx = sec^2x Identify it, please explain so I know how you did it, thanks

max2010maxim [7]

$\frac{sin^2x}{cos^2x} + sin x *cscx\\ tan^2x + \frac{sin x}{sin x} \\ tan^2x + 1\\ sec^2x$

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$csc x = \frac{1}{sinx}$

$tan^2x + 1 = sec^2x$

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3 years ago

Write an equation of the line that passes through a pair of points:

Shalnov [3]

Answer:

Step-by-step explanation:

(-2,-2) , (5,-5)

$Slope=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}\\\\=\frac{-5-(-2)}{5-(-2)}\\\\=\frac{-5+2}{5+2}\\\\=\frac{-3}{7}\\$

(-2,-2), m= -3/7

Line equation: y -y1 =m*(x -x1)

y-(-2) = -(-3/7)(x - [-2])

$y+2=\frac{-3}{7}*(x+2)\\\\y+2=\frac{-3}{7}*x+(\frac{-3}{7})*2\\\\y+2=\frac{-3}{7}x-\frac{6}{7}\\\\y=\frac{-3}{7}x-\frac{6}{7}-2\\\\y=\frac{-3}{7}x-\frac{6}{7}-\frac{2*7}{1*7}\\\\y=\frac{-3}{7}x-\frac{6}{7}-\frac{14}{7}\\\\y=\frac{-3}{7}x-\frac{20}{7}$

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3 years ago

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