3 years ago

4 2/9 + (16 5/9 - y) = 15 1/9 - 8 7/9 PLEASE FAST

Mathematics

2 answers:

lutik1710 [3]3 years ago

5 0

Answer:

14.444444 but i dont know for sure so wait for someone else to respond

Step-by-step explanation:

Kamila [148]3 years ago

3 0

Answer:

Y=130/9

Step-by-step explanation:

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marissa [1.9K]

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third integer= x+2 (x + 1 + 1)

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3 years ago

Find the numbers a, b and c if the polynomial x3−18x2+24xb−c is the cube of the binomial x+2a.

mojhsa [17]

Answer:

$a=-3\\ \\b=\dfrac{9}{2}\\ \\c=216$

Step-by-step explanation:

Use formula

$(u+v)^3=u^3+3u^2v+3uv^2+v^3.$

Hence,

$(x+2a)^3=x^3+3x^2\cdot 2a+3x\cdot (2a)^2+(2a)^3=x^3+6ax^2+12a^2x+8a^3.$

This expression is equal to

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so we can equate the coefficients at powers of x:

$x^3:\ 1=1\\ \\x^2:\ 6a=-18\Rightarrow a=-3\\ \\x:\ 12a^2=24b\Rightarrow b=\dfrac{9}{2}\\ \\1=x^0:\ 8a^3=-c\Rightarrow c=-8\cdot (-3)^3=216.$

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4 years ago

What is the value of y in the equation 5x + 2y = 20, when x = 0.3?

Hatshy [7]

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3 years ago

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Irina-Kira [14]

Answer:

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Step-by-step explanation:

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Step-by-step explanation:

RISE/RUN is an important rule...

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3 years ago