3 years ago

The length of a rectangle is four times its width. The length is 4 2/3 feet. What is the area of the rectangle?

Mathematics

1 answer:

sesenic [268]3 years ago

3 0

Answer:

4.687225

Step-by-step explanation:

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15f) Determine the line of symmetry. y = x2+16x+64

Slav-nsk [51]

Answer:

x=-8

Step-by-step explanation:

the equation is in standard form of y=ax^2+bx+c

so, to find the vertex, or axis of symmetry do -b/2a.

-16/2(1)=

-8

7 0

3 years ago

Simplify (xy)^-3/(x^-5y)^3

Nesterboy [21]

$Use:\\\\(a\cdot b)^n=a^n\cdot b^n\\\\a^n:a^m=a^{n-m}\\\\\left(a^n\right)^m=a^{n\cdot m}\\\\a^{-n}=\left(\frac{1}{a}\right)^{n}\\==================================\\\frac{(xy)^{-3}}{(x^{-5}y)^3}=\frac{x^{-3}y^{-3}}{(x^{-5})^3y^3}=\frac{x^{-3}y^{-3}}{x^{-15}y^3}=x^{-3-(-15)}y^{-3-3}=\boxed{x^{12}y^{-6}=\frac{x^{12}}{y^6}}$