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Pachacha [2.7K]
3 years ago
5

What is 8 9th +4 7th

Mathematics
2 answers:
kvv77 [185]3 years ago
8 0
Do you mean 8/9 + 4/7?

tamaranim1 [39]3 years ago
7 0
The answer would be 92 over 63(92/63) since the least common denominator is 63
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75 miles in 3 hours ; 140 miles in 4 hours
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Answer:

no

Step-by-step explanation:

75:3=25:1

140:4=45:1

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Help please it’s needed
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Step-by-step explanation:

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The point P(8,-3) lies on the curve with equation y=f(x). Find the image of P on the curve with equation y=f(x-4).
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Step-by-step explanation:

Add 4 to x value because it is a horizontal translation right 4.

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3 years ago
Find the polynomial f(x) of degree 3 with real coefficients that has a y-intercept of 60 and zeros 3 and 1+3i.
Sauron [17]

\bf \begin{cases} x=3\implies &x-3=0\\ x=1+3i\implies &x-1-3i=0\\ x=1-3i\implies &x-1+3i=0 \end{cases} \\\\[-0.35em] ~\dotfill\\\\ (x-3)(x-1-3i)(x-1+3i)=0 \\\\\\ (x-3)\underset{\textit{difference of squares}}{([x-1]-3i)([x-1]+3i)}=0\implies (x-3)([x-1]^2-[3i]^2)=0 \\\\\\ (x-3)([x^2-2x+1]-[3^2i^2])=0\implies (x-3)([x^2-2x+1]-[9(-1)])=0

[ correction added, Thanks to @stef68 ]

\bf (x-3)([x^2-2x+1]+9)=0\implies (x-3)(x^2-2x+10)=0 \\\\\\ x^3-2x^2+10x-3x^2+6x-30=0\implies x^3-5x^2+16x-30=f(x) \\\\\\ \stackrel{\textit{applying a translation with a -2f(x)}}{-2(x^3-5x^2+16x-30)=f(x)}\implies -2x^3+10x^2-32x+60=f(x)

5 0
3 years ago
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