3 years ago

Express the following in expanded form by all three method

Mathematics

1 answer:

marishachu [46]3 years ago

7 0

Is there a picture we can use

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(X^-5y/y^3)^-1= A)x^5/y^2 B)y^2/x^5 C)x^5 y^2 D)x^5 y^-3

Nezavi [6.7K]

$\left(\frac{x^{-5}y}{y^3} \right)^{-1} \\ \\ =\frac{y^3}{x^{-5}y} \\ \\ =\frac{y^2}{x^{-5}} \\ \\ =\boxed{x^5 y^2}$

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1 year ago

Please Help

o-na [289]

Answer:

Step-by-step explanation:

-The length of the cubes side is (x-5) and the total surface area is 1944 sq units.

-We apply the formula for surface area and equate to solve for x:

$A=6s^2\\\\1944=6(x-5)^2\\\\324=(x-5)^2\\\\324=x^2-10x+25$

#Equate to zero as below:

$324=x^2-10x+25\\\\x^2-10x+25-324=0\\\\x^2-10x-299=0\\\\\# Quadratic \ Formula:\\\\x_{1,2}=\frac{-b\pm \sqrt{b^2-4ac}}{2a}\\\\\\=\frac{10\pm\sqrt{(-10)^2-4(1\times-299)}}{2\times1}\\\\x_1=23, \ \ \ x_2=-13$

length dimensions are always positive.

Hence, the value of x is 23

8 0

3 years ago

A stick is cut into 8 equal pieces. If each piece were 10cm shorter,we could have cut the original stick into 12 equal pieces. H

max2010maxim [7]

Answer:

240 cm

Step-by-step explanation:

8x=12(x-10)

8x = 12x -120

120 = 4x

30 = x

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3 years ago

What is the measure of the missing angle of the triangle? Round your answer to the nearest degree.

a_sh-v [17]

X=sin^-1(45/54)
X=56 degrees

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3 years ago

Question 2 of 10

Bess [88]

A. X= 8
X-16=-8
X= -8+16
X=8

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3 years ago

Read 2 more answers

Express the following in expanded form by all three method​

Express the following in expanded form by all three method