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crimeas [40]
3 years ago
8

If n represents a number, then write an expression for three times the difference of the number and six increased by four times

the number.
Mathematics
2 answers:
Elenna [48]3 years ago
8 0

3(n-6)+4n

lbvjy [14]3 years ago
4 0

Answer:

divison and subtracion

Step-by-step explanation:

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Answer: 60 weeks.

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Please solve and explain for number 2
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3 years ago
Solve for x.<br><br> 25x=65<br><br><br> 1225<br><br> 125<br><br> 3<br><br> 6
NARA [144]

25x = 65
Divide both sides by 25 to isolate x:

\frac{25x}{25}  =  \frac{65}{25}  \\  \\ x =  \frac{13}{5}  = 2.6
8 0
4 years ago
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Which of the following represents the zeros of f(x) = 2x3 − 5x2 − 28x + 15?
likoan [24]

\mathrm{Use\:the\:rational\:root\:theorem}

a_0=15,\:\quad a_n=2

\mathrm{The\:dividers\:of\:}a_0:\quad 1,\:3,\:5,\:15,\:\quad \mathrm{The\:dividers\:of\:}a_n:\quad 1,\:2

\mathrm{Therefore,\:check\:the\:following\:rational\:numbers:\quad }\pm \frac{1,\:3,\:5,\:15}{1,\:2}

-\frac{3}{1}\mathrm{\:is\:a\:root\:of\:the\:expression,\:so\:factor\:out\:}x+3

-\frac{3}{1}\mathrm{\:is\:a\:root\:of\:the\:expression,\:so\:factor\:out\:}x+3

\mathrm{Compute\:}\frac{2x^3-5x^2-28x+15}{x+3}\mathrm{\:to\:get\:the\:rest\:of\:the\:eqution:\quad }2x^2-11x+5

=\left(x+3\right)\left(2x^2-11x+5\right)

Factor: 2x^2-11x+5

2x^2-11x+5=\left(2x^2-x\right)+\left(-10x+5\right)

=x\left(2x-1\right)-5\left(2x-1\right)

2x^3-5x^2-28x+15=\left(x+3\right)\left(x-5\right)\left(2x-1\right)

\left(x+3\right)\left(x-5\right)\left(2x-1\right)=0

\mathrm{Using\:the\:Zero\:Factor\:Principle:}

thus zeros of f(x) is

x=-3,\:x=5,\:x=\frac{1}{2}

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Does this represent a function?<br><br> y^2 = 16 – 4x^2
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It’s not a function because when it’s graphed put it doesn’t pass the vertical line test
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