1 year ago

A density graph for all the possible heights between 0 inches and 80 inches is

1 answer:

4 0

Density graphs have an area of 1 to represent 100% of the possibilities.

The length is 80

80 * height = 1
Height = 1 / 80
Height = 0.0125 (D)

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Simplify expression: <br><br> 3(4x-5) + 4(2x+6)

SVEN [57.7K]

3(4x-5)+4(2x+6)

Distribute.

12x-15+8x+24

12x+8x= 20x

24-15= 9

20x+9 <---- simplified expression

I hope this helps!
~kaikers

6 0

3 years ago

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Which shows the correct substitution of the values a, b, and c from the equation 0 = 4x2 + 2x – 1 into the quadratic formula bel

neonofarm [45]

Answer:

x = StartFraction negative 2 plus or minus StartRoot 2 squared minus 4(4)(negative 1) EndRoot Over 2(4) EndFraction

Step-by-step explanation:

we know that

The formula to solve a quadratic equation of the form

$ax^2+bx+c=0$

is equal to

$x=\frac{-b(+/-)\sqrt{b^2-4ac} }{2a}$

in this problem we have

$4x^2 + 2x - 1=0$

$a=4$

$b=2$

$c=-1$

substitute in the formula

$x=\frac{-2(+/-)\sqrt{2^2-4(4)(-1)} }{2(4)}$

therefore

x = StartFraction negative 2 plus or minus StartRoot 2 squared minus 4(4)(negative 1) EndRoot Over 2(4) EndFraction

8 0

1 year ago

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*PLS HELP!!*<br>{The Picture Is In The Attachment}

mash [69]

Answer:

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Step-by-step explanation:

45 + 135 = 180

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Answer:

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